Volume 08 (1864) (474 pages)

The Rining and Scientific Press, 87 Patent Departinent. Prerervy. Moriox,—Mr. John M. Petterson, of this city, thinks le has accomplished the “ mechanical ipossibility " of producing a perpetual notion, from whicli an available working power may be derived, At all events, he has takeu the preliminary steps to secure Ictters patent, through the Mixing axp Scr EMTIFIC Press Agency, We shall probably be allowed to give a description of this simple, yet ingenions piece of mechanism. The iuventor feels sanguine of snecess. Tuner Isproveuenrt—A California Invention,— ‘This invention relates to an improvement in a pump for which letters patent were originally obtained in 1861, ‘The improvement for which additional letters have just been obtained relates toan improved method of securiig the airchamber to the valvo-chest of the pump, whereby a firm and durable connection of the above named parts is obtaiued, and one which will admit of being manipulated with the greatest facility, in order to seeure the air-chamber to the yalve-chest, and to detach it therefrom. The inventor, in his specifications, claims the combinations of the swinging screw bolts, C, and slotted plates, a, with the valve-chest, A, and air-chamber, B, in the manuer specified, Thomas Hansbrow, inventor, Sacramento, California. APPARATUS FoR Concentrating OrE—d California Invention —YVhis invention relates to an improvement in the manner of slnicing or scparating the gasigues and vock or earthy matter from the orcs of valuable metals after the same has been reduced to powder by stamping or crushing, so as to effect by the automatie action of water a perfect separation of the ore from tho rock in which it was disseminated, This apparatus has already heen noticed in onr col‘uinns asin operation near Mokelumne Hill, in this State, where it has been successfully introduced for concentratiug copper ores, It consists of a common slaice through the bottom of which an upward current of water is made to pass, and through which tho heavier particles of ore or metal will pass, while the lighter or earthy portion of the mass to be yorked is earricd ont of the mouth of the slnice. ‘ames Hepboro, of Mokelnmne Hill, California, is o inventor, A. New Brastixac Powper.—Cincinnati papers ‘jounce the invention, in that city, of a new kind lasting powder, mnch cheaper and far more powel than any hitherto employed. It is said that De pounds of it moved arock twenty-fire by thirty feend eight feet thick. It costs only three dollars keg, A'rw Pamrine Press—James Gordon, a young farmerom Caledonia, New York, has exhibited the model 4 new printing press of his own invention, which (bines several novelties, the ntility of which can ONlbe determined by actual trial. ‘The press prints by sides of the sheet at one feeding, one form beliou a flat bed, the other forming the segincnt of ®linder. Its speed is calculated at 3,000 sheets an kr; its cost but little more than that ot the large Toy press, ‘Che cylinder form does uot, as inthe Mpress, ake a complete revolution, but turns partié and returns, Gordon is a farmer, with mecha] genius, His only knowledge of presses Was \ived from seeing an ordinary Taylor press, M 4 4%ester office, and he resolved to improve upon it, A Maaynerio invented a mag x.—A Frenchman has recently ¢ pen nniting two metals capable of producing thditaie current, which is excited by the moisture of \hand. It diffuses a healthy and curative influoncéey the whole body of the person using it, aeting te system. An Important Loyery,—It has recently been discovered that Pes may be photographed on steel, and that an ehying thus obtained will give 5,000 copies. Illuseq books may soon become the rule rather than \ exception. The Mining and Scientific Presa Patent oy. OFFICE, 57, GOVERNMENT NOCSE, SAN FRANCISCO. Information About Obtaining Patents. The l'uten] Law Amoudiment Act, of March 4th 1841, aml Marelli 3d 1863, nw fn force, Introduces several Important enages ht our Pat cut System. Thr general panctice of the Patent Otte, however, in regnnl betho countaation and issne at Letters Natent for new inyventlons, rommins nearly tlt same as hersbdore, The mmendinentet s Moreh, 1863, jwoyldes, in section 3, that every patent shall be diated as of n day uot biter than six montis alter the dnuw at whieh le wos jorsed ail alowed, and notlee thereof seut tn the appllewnt or hlangent, And If tho tinal feo for stich patent be net pou] within the sutd six mouths, the patent shall be wilhehl, an! the Invention therein described shall hecome puldic preperty as aguinst Ihe ayptioant therefar: Provided, Qa in all cases where patents inrve been allawed previous to the passage of thls acl, the sald six miunths shall be reckoned trom The chite of such passage. The firat question, theretore, that presents Itself to the biventor, who deslres to pracure 1 patent, is: "Can Tobtaina patent? Aposllive nnawer to 11s qnestion is only to be hal ly presenting a format Appdlenlion her patent ta the Govermnentembracing a petitinn, spect Hlentlon, model, duplicute, drawlugs, and the payment of the preseribed offend fers, Ashh: fron these steps, all the Inventor can do Is, to subinit his pians lo persuns exyerienced lu the business of obtuininy patents, and sullelt their upinton and advice. If the parlies consniicd ara honorable men, tho Inventor may safely contide his Ideas te thei, nnd they will intorm hin whether or not bis inventlon Is jrubably patentable. Thuse who have made Inventions and desire 1o consult with us respecting the same, are cordially invited te doso, We shall be happy to see them in person al our ollice, or to ailvise them by mail, or throng the Mixinc ano Screxttric Pnxss., Iuall casesthey may expect trom us an honest oginlon, For these consultations, opinion and ndvlee, we make no eharge. Apen-and-ink sketch, and deserlp tlen of the Inventlonshentd hesont; together with astump terreturn postnge. Write. jdnin ; do not use peneil or pale ink ; be brief. Remember that ull business commiltted to our care, and ali consul. tations, are kept by ts sceret, and strictly contidential. Preliminary Examinations. Im some eases it may be advisable as a wieasare of prudence to oriler a preliminary cxainination, This cousists of a special search, niade at the U. S. Patent Office, Washingten, through the medium of our assoclate In that elty, to ascertain whether amwung all the patents and moilels there stored, uny Invention enn be fonad which is siniJar in character to that of the apyicaut. Ou the completicn of this special seareh we senil a written report to the pnrly eoneerned, with sniteble mivice. Our charge for this service, inciuding tbe report, is ten dollars. This search, though it iuvolves the expense just nained, will usually prove sntisfaclory. If yhe same device bas been betore patented, the timo and expense of consirncting models, prepariig doenmenis, cle., will in most eases besaved ; if theinvention has been in part patented, the applicant will be cnabla lo mod: ity his clals and exjeetations necordingly. Many other obvious advuintages altending the I'reliminary Examination ; although tho atrielest senreh docs nut always enable the applicant to know jositively whether a patent cnn be had. Applications for patents are often rejected beeanse the Examining oficcr finds a description of the alleged Invention in some foreign publication ; or some other person las beon prevlausly rejected on an analugous device; or some ather invention for a similar purpose, but partially yesombles the applleanr’s in ils construction; or the Government makes an unjust or wicummon decislon, Against none of these contingencies dues the Prelimiuary Exainination provide ; if will, however, Fenerally intorm the applicaut whether an improvement similar to his and used Yor the suine purpose has ever been patented or not in this country. Persons desiring Ihe Preliminary examination are requested lo remit tho fee (310), and furnish us with a sketch and description of tho invention. Caveats. A Caveat is a confidential communication made to the Palent ‘Office, and Is thereture filed within its sceret archives. The priviJege sceured under a caveat is, that it entitles the cayeator to reecive nolice, for a perivd of one year, of any apylication for a patent subsequently filed, and which is adjudged to bo novel, and is likely to interfere with the invention described in the cayent, and the cavcator is then required to complete his application for a patent within three nionths from the date of said notice. Caveat papers should be yery carefully prepared. Our fee tor the service varies from $1010 $20. The Goyernment tee ander tle new law is reduced to ten dol-, Jivs ; und this stm docs not apply, as heretofore, as part of the fee on presenting an application tor a patent. Inventors will uftimes find it very important to take advantaze of the caveat sysicin—tie expense under the law being comparatively sinall. To enable us to preparo caveat paper, we only requlre a sketch and description of the invention ; no model being necessary. Expense of Applying for a Patent, Rejections, ete. Thier the new law; The Government fee, on filiug an applieation for a patent, is fitteen dollars ; wud if the patent is allowed, twenty dollars additional is reqnired. Tf rejected, the first fee of filteen dol. jnrs is all that is demanded. English,. ¥rench, Austrian, Prussian, Spanish, and inventors of every nationality, may new obtain pat enigin the United States upon the sane torms as ourown citizens Tho only discrimination made is against subjects of govermmnenis thut discriminate agalnst the tuhabitunts of the United States. To tho foregoing ofticinl tees must be added the Attorucy’s fces for preparing the various ducnments: and drawings. Our charge for preparing a case, presenting it to the Governient, and attending to all business connected with it, until a decision is given, isfrom 320 to $40. If the patent is granted no further agency expenses cusucs.— 1f the applicntion Is rejecled we cause a thorough investigation to be mado-mio the reasons presenied to the Commissioner for refusing tho patent. Ininaking this examination, we lave cxeess to all tho drawings, models, bouks and specifications cited in reference, and we report the result as carly as possible to our elient. For this service we make no charge. If the rejection proves to be an unjust one—whieh sometimes happens—it can generally be reversed, and tie patent obtained by contesting the ease. For this prosccution we charge a fee proportionate to the extra Inbor Involved, payable only on the issue of Ihe patent; but our demaud will be reasonable and satisfactory to our clients, and will bo arranged beforehand by special jgrecment. The system adgpted by us works welt, gives gencral satisfactlun and presents to nll apydicants, rich or poor, an equal opportunity of Thavlng thelr patent cases prejured, conducted und prosceotel In the best manner, by experlenced attorney's, upon the most moderate terms. tiventurs who Inve rejected cases, prepared elther by them selves, or for them by ather agents, mpl desire to ascertain thelr prospects of succens by turther eflurts, are mvited te avall themselves of our uneyuilied fucilities In securlny tavoralde resuits, Wo lave Ieen snecesefil In securlog Letters Vatent la taany cnses of ench ao matter, Our terns fur such chses are very joderate, Models, Remittances, eto. The laws reqiures that the inventor shall, In all eases, furnish a ntodel, which pnist net exceed tweive liehes In nny ot its dinentlong; itsbsuld be neatly minde, of tnnl wood er metal, or tueth, varnished or pulnieil ; ihe name of the inventer shanld be engrnved or paluted on it consptenonsly. When the invenilon consists of an improvement ow some known matching, a fall werking model of the whole wiil not be nveesmary. Tt should be snfilelently portecl, however, to show, with elearness the nature and opcrathim of the iInventlon. Assvon as the model ls rendy, it should be carefully boxed ond shipped by express or otherwise, Ie our address, namely; Dewey & €o., Mining and Sclentiile Press, rvoms 66 and 57, Govermnent House, corner of Sansome and Washington Streets, San Francisco, Cul. Prepay expenses and send express reeeipl to us by mall. Simultanconsly with the modcl, the Inventor should srnd ns thy first Installment of the Government feo, ilfteen dollars, The money may be forwarded elther by express with the model, or by innil-— The safest way tu remit ls hy dratt on San Francisco, paynble 10 our order. Alwnys send a letter with the model, and also the remittance stuling the name and address of the sender. A {nll description shunld also bo sent with the modol, ombedylng all the Idens of the Inventor respeeting the Improvement. On the receipt of the model and Govermnent fee, the caso Is duly egistered upon our books, and the upplication proceeded with as fastas possible. When the docnments are ready we send tiem to the inventor by mail, for his examination, signiture nud affidavit, with -a letter of Instruction, etc. Our tee for preparing the case is then dne, and will be called tor. The case will then be presente lo iho Patent Oftice, and as soon as the patent is ordered to te Issned, tbo applicant will bo notified to remit the last Installment of the Government fee, uamely, byenly dellars. Inventors who do business witlt us will be notified of the slale of their appileation in the Patent Office, when it is possible tor us lo do so. We do not require (be personal attendanec of the inventor, unessll is one of great complication ; tho business ean be well done by correspondonce. When the invention consists of a new arllele of manufaclure, or a new composition, samples of ihe separate ingredionts, sufficlent to munke the experlment, and also of ihe mauutacturod, article itself must be furnished. Tho average time required to procure a palent, when the case is conducted at our agency, Is three months, We treqnently get thom through In Icss time ; but in other cuses, owing to ilelay on the part of officinls, the perlod is sometimes extended to fuur or five months, and even more. Weinake a speclal poiut to forward ow cases as rapidly as possible. Return of Models. Under the new law, {f tho upplicants cnse has been rejecled he is entitled to withdraw his model trom The Patent Office. This Inw ayplics to ull past rejected cases, and if Parties wish to obtain their nioiels through its, they can do so at a: small expense Applicetion for Patents, Designs, Trade-Marks, Labelis, ete. Uniler the new Jaw patents umy be taken out for any new form of any atiicic, alse tor tools, pulterns, castings, machine-frames, staveslates, borders, tringes, all new desigus for printing, Weaving ov tiuaping upen silks, callcoes, carpels, vil-clath, prints, pap: ang: ngs, und ofhernrticles, Trade-marks, labels, envelopes, boxes and ottles tor goods, nay also he pitented ; likewise all works of art, neinding prints, paimtings, busts, statues, bas-rellef, or compositions 1 alio, or busso relieva, new dies, impressions, ornaments to bo placod upon any article of manufacture, architectural work, ete. Our fneilities for the prompt preparation and securing of patents are of the most extcnsivo ebnracter and our charges are very moderate. Patent Office Fees, and How Payable. Nearly all the fees paynble to Ihe Patent Office are positively requirod by law to be paid in advance. For the sake of uniformity wd convenience, the remaining fees will he required to be paid In the same inainer ; that isto say, belore the labor is perforined tor which they are to be reecived in payment. The following is the tarlif’ of fees ¢stablished by law: On every application for x tesign, for 3 yenrs and six mouths Ou every appiication for n design, tor seven years y aplication for a desizu, fur tourlcen year: ap Pg iginal patent On filing a dischiimer,. appHcation for a re-is in s ndditional patent granted On eve it a on § on every applicalloutor nn extension. On the grantat cvery extension. On appeal to the Commissioner fr v Ouevery appeni to the Judges of Circuit Court, D.C. Infringements. {ho manufacture, sale, or use of a patented article, without con, sent of the owner of the patent, is an Infringement, and subiccts the infringer, by iujunetion trom the Court, lo an arrest of or prohibltlon trom the employment ot his. machinery, shop, works, factory and nen in production of the article, Tn nddition to injunction the Intringer is liable to be mulehed in treble the amount of damages awarded by the jury. The maker, the worknian, the seller, and the purchaser, 11 n user, are ni Hiabie cither collcetively ov individually. Maving aceess to all the patents, models, pnblic records, drawings and ollier documents pertaining tu the Patent .Oflice, we are pre-pared (o make examimitlous and give opluions upon all inirlngenent questions, advise as to the seopo and ground covered by patents, and direet with vigor any legal proceedings therewith counected. Our charge will be moderate, «ud propurtlonate to the lnbor involved. Appeals. In rejected and other eases, the new law provides for an appeal from the Examiner-in-chief to the Commissioner in person, on tho naviment of 1c fee nf twenty dollars. A further appeal may be mken vom the decisiar of the Commissioner to Ihe U. 8. Court, of the District of Golumbhia. These appeals are heard by any of the Juilges hetoro whom the applicant elects ti bring y i the papers, models, cte., are sont by the Cammnisstan: then reviews the case, uid cither sustains or reverses the Comjoner’s Hecision. ‘Tho party taking the appeal pays an additional dollars. The Jndee uppoaints a day of hearing. appear in ao or by keunsel to stato his case an le < gument. ive days ure nllowed the apponeit to juit in an answer, and 1 similar period to ihe nppelant for a closiug reply. Many important eases re Urought before the. Judges on appea’ and ibe declsionsof t] mimissinier are pot mnfreqnently reversed We hnve had successtul ¢x ee in conducting these appeals. ann oltr services ure rendered on mivodcrate terms. DEWEY & CO,, Agents, Mining and Scientific Press Office, Government liouse, corner San somo and Washingtou streets, San Francisca fee of iwenty-fivo The applicnnt can dt file awritten arSo

The Rining and Scientific Press, 87 Patent Departinent. Prerervy.. Moriox,—Mr. John M. Petterson, of this city, thinks le has accomplished the “ mechanical ipossibility " of producing a perpetual notion, from whicli an available working power may be derived, At all events, he has takeu the preliminary steps to secure Ictters patent, through the Mixing axp Scr EMTIFIC Press Agency, We shall probably be allowed to give a description of this simple, yet ingenions piece of mechanism. The iuventor feels sanguine of snecess. Tuner Isproveuenrt—A California Invention,— ‘This invention relates to an improvement in a pump for which letters patent were originally obtained in 1861, ‘The improvement for which additional letters have just been obtained relates toan improved method of securiig the airchamber to the valvo-chest of the pump, whereby a firm and durable connection of the above named parts is obtaiued, and one which will admit of being manipulated with the greatest facility, in order to seeure the air-chamber to the yalve-chest, and to detach it therefrom. The inventor, in his specifications, claims the combinations of the swinging screw bolts, C, and slotted plates, a, with the valve-chest, A, and air-chamber, B, in the manuer specified, Thomas Hansbrow, inventor, Sacramento, California. APPARATUS FoR Concentrating OrE—d California Invention —YVhis invention relates to an improvement in the manner of slnicing or scparating the gasigues and vock or earthy matter from the orcs of valuable metals after the same has been reduced to powder by stamping or crushing, so as to effect by the automatie action of water a perfect separation of the ore from tho rock in which it was disseminated, This apparatus has already heen noticed in onr col‘uinns asin operation near Mokelumne Hill, in this State, where it has been successfully introduced for concentratiug copper ores, It consists of a common slaice through the bottom of which an upward current of water is made to pass, and through which tho heavier particles of ore or metal will pass, while the lighter or earthy portion of the mass to be yorked is earricd ont of the mouth of the slnice. ‘ames Hepboro, of Mokelnmne Hill, California, is o inventor, A. New Brastixac Powper.—Cincinnati papers ‘jounce the invention, in that city, of a new kind lasting powder, mnch cheaper and far more powel than any hitherto employed. It is said that De pounds of it moved arock twenty-fire by thirty feend eight feet thick. It costs only three dollars keg, A'rw Pamrine Press—James Gordon, a young farmerom Caledonia, New York, has exhibited the model 4 new printing press of his own invention, which (bines several novelties, the ntility of which can ONlbe determined by actual trial. ‘The press prints by sides of the sheet at one feeding, one form beliou a flat bed, the other forming the segincnt of ®linder. Its speed is calculated at 3,000 sheets an kr; its cost but little more than that ot the large Toy press, ‘Che cylinder form does uot, as inthe Mpress, ake a complete revolution, but turns partié and returns, Gordon is a farmer, with mecha] genius, His only knowledge of presses Was \ived from seeing an ordinary Taylor press, M 4 4%ester office, and he resolved to improve upon it, A Maaynerio invented a mag x.—A Frenchman has recently ¢ pen nniting two metals capable of producing thditaie current, which is excited by the moisture of \hand. It diffuses a healthy and curative influoncéey the whole body of the person using it, aeting te system. An Important Loyery,—It has recently been discovered that Pes may be photographed on steel, and that an ehying thus obtained will give 5,000 copies. Illuseq books may soon become the rule rather than \ exception. The Mining and Scientific Presa Patent oy. OFFICE, 57, GOVERNMENT NOCSE, SAN FRANCISCO. Information About Obtaining Patents. The l'uten] Law Amoudiment Act, of March 4th 1841, aml Marelli 3d 1863, nw fn force, Introduces several Important enages ht our Pat cut System. Thr general panctice of the Patent Otte, however, in regnnl betho countaation and issne at Letters Natent for new inyventlons, rommins nearly tlt same as hersbdore, The mmendinentet s Moreh, 1863, jwoyldes, in section 3, that every patent shall be diated as of n day uot biter than six montis alter the dnuw at whieh le wos jorsed ail alowed, and notlee thereof seut tn the appllewnt or hlangent, And If tho tinal feo for stich patent be net pou] within the sutd six mouths, the patent shall be wilhehl, an! the Invention therein described shall hecome puldic preperty as aguinst Ihe ayptioant therefar: Provided, Qa in all cases where patents inrve been allawed previous to the passage of thls acl, the sald six miunths shall be reckoned trom The chite of such passage. The firat question, theretore, that presents Itself to the biventor, who deslres to pracure 1 patent, is: "Can Tobtaina patent? Aposllive nnawer to 11s qnestion is only to be hal ly presenting a format Appdlenlion her patent ta the Govermnentembracing a petitinn, spect Hlentlon, model, duplicute, drawlugs, and the payment of the preseribed offend fers, Ashh: fron these steps, all the Inventor can do Is, to subinit his pians lo persuns exyerienced lu the business of obtuininy patents, and sullelt their upinton and advice. If the parlies consniicd ara honorable men, tho Inventor may safely contide his Ideas te thei, nnd they will intorm hin whether or not bis inventlon Is jrubably patentable. Thuse who have made Inventions and desire 1o consult with us respecting the same, are cordially invited te doso, We shall be happy to see them in person al our ollice, or to ailvise them by mail, or throng the Mixinc ano Screxttric Pnxss., Iuall casesthey may expect trom us an honest oginlon, For these consultations, opinion and ndvlee, we make no eharge. Apen-and-ink sketch, and deserlp tlen of the Inventlonshentd hesont; together with astump terreturn postnge. Write. jdnin ; do not use peneil or pale ink ; be brief. Remember that ull business commiltted to our care, and ali consul. tations, are kept by ts sceret, and strictly contidential. Preliminary Examinations. Im some eases it may be advisable as a wieasare of prudence to oriler a preliminary cxainination, This cousists of a special search, niade at the U. S. Patent Office, Washingten, through the medium of our assoclate In that elty, to ascertain whether amwung all the patents and moilels there stored, uny Invention enn be fonad which is siniJar in character to that of the apyicaut. Ou the completicn of this special seareh we senil a written report to the pnrly eoneerned, with sniteble mivice. Our charge for this service, inciuding tbe report, is ten dollars. This search, though it iuvolves the expense just nained, will usually prove sntisfaclory. If yhe same device bas been betore patented, the timo and expense of consirncting models, prepariig doenmenis, cle., will in most eases besaved ; if theinvention has been in part patented, the applicant will be cnabla lo mod: ity his clals and exjeetations necordingly. Many other obvious advuintages altending the I'reliminary Examination ; although tho atrielest senreh docs nut always enable the applicant to know jositively whether a patent cnn be had. Applications for patents are often rejected beeanse the Examining oficcr finds a description of the alleged Invention in some foreign publication ; or some other person las beon prevlausly rejected on an analugous device; or some ather invention for a similar purpose, but partially yesombles the applleanr’s in ils construction; or the Government makes an unjust or wicummon decislon, Against none of these contingencies dues the Prelimiuary Exainination provide ; if will, however, Fenerally intorm the applicaut whether an improvement similar to his and used Yor the suine purpose has ever been patented or not in this country. Persons desiring Ihe Preliminary examination are requested lo remit tho fee (310), and furnish us with a sketch and description of tho invention. Caveats. A Caveat is a confidential communication made to the Palent ‘Office, and Is thereture filed within its sceret archives. The priviJege sceured under a caveat is, that it entitles the cayeator to reecive nolice, for a perivd of one year, of any apylication for a patent subsequently filed, and which is adjudged to bo novel, and is likely to interfere with the invention described in the cayent, and the cavcator is then required to complete his application for a patent within three nionths from the date of said notice. Caveat papers should be yery carefully prepared. Our fee tor the service varies from $1010 $20. The Goyernment tee ander tle new law is reduced to ten dol-, Jivs ; und this stm docs not apply, as heretofore, as part of the fee on presenting an application tor a patent. Inventors will uftimes find it very important to take advantaze of the caveat sysicin—tie expense under the law being comparatively sinall. To enable us to preparo caveat paper, we only requlre a sketch and description of the invention ; no model being necessary. Expense of Applying for a Patent, Rejections, ete. Thier the new law; The Government fee, on filiug an applieation for a patent, is fitteen dollars ; wud if the patent is allowed, twenty dollars additional is reqnired. Tf rejected, the first fee of filteen dol. jnrs is all that is demanded. English,. ¥rench, Austrian, Prussian,

Spanish, and inventors of every nationality, may new obtain pat enigin the United States upon the sane torms as ourown citizens Tho only discrimination made is against subjects of govermmnenis thut discriminate agalnst the tuhabitunts of the United States. To tho foregoing ofticinl tees must be added the Attorucy’s fces for preparing the various ducnments: and drawings. Our charge for preparing a case, presenting it to the Governient, and attending to all business connected with it, until a decision is given, isfrom 320 to $40. If the patent is granted no further agency expenses cusucs.— 1f the applicntion Is rejecled we cause a thorough investigation to be mado-mio the reasons presenied to the Commissioner for refusing tho patent. Ininaking this examination, we lave cxeess to all tho drawings, models, bouks and specifications cited in reference, and we report the result as carly as possible to our elient. For this service we make no charge. If the rejection proves to be an unjust one—whieh sometimes happens—it can generally be reversed, and tie patent obtained by contesting the ease. For this prosccution we charge a fee proportionate to the extra Inbor Involved, payable only on the issue of Ihe patent; but our demaud will be reasonable and satisfactory to our clients, and will bo arranged beforehand by special jgrecment. The system adgpted by us works welt, gives gencral satisfactlun and presents to nll apydicants, rich or poor, an equal opportunity of Thavlng thelr patent cases prejured, conducted und prosceotel In the best manner, by experlenced attorney's, upon the most moderate terms. tiventurs who Inve rejected cases, prepared elther by them selves, or for them by ather agents, mpl desire to ascertain thelr prospects of succens by turther eflurts, are mvited te avall themselves of our uneyuilied fucilities In securlny tavoralde resuits, Wo lave Ieen snecesefil In securlog Letters Vatent la taany cnses of ench ao matter, Our terns fur such chses are very joderate, Models, Remittances, eto. The laws reqiures that the inventor shall, In all eases, furnish a ntodel, which pnist net exceed tweive liehes In nny ot its dinentlong; itsbsuld be neatly minde, of tnnl wood er metal, or tueth, varnished or pulnieil ; ihe name of the inventer shanld be engrnved or paluted on it consptenonsly. When the invenilon consists of an improvement ow some known matching, a fall werking model of the whole wiil not be nveesmary. Tt should be snfilelently portecl, however, to show, with elearness the nature and opcrathim of the iInventlon. Assvon as the model ls rendy, it should be carefully boxed ond shipped by express or otherwise, Ie our address, namely; Dewey & €o., Mining and Sclentiile Press, rvoms 66 and 57, Govermnent House, corner of Sansome and Washington Streets, San Francisco, Cul. Prepay expenses and send express reeeipl to us by mall. Simultanconsly with the modcl, the Inventor should srnd ns thy first Installment of the Government feo, ilfteen dollars, The money may be forwarded elther by express with the model, or by innil-— The safest way tu remit ls hy dratt on San Francisco, paynble 10 our order. Alwnys send a letter with the model, and also the remittance stuling the name and address of the sender. A {nll description shunld also bo sent with the modol, ombedylng all the Idens of the Inventor respeeting the Improvement. On the receipt of the model and Govermnent fee, the caso Is duly egistered upon our books, and the upplication proceeded with as fastas possible. When the docnments are ready we send tiem to the inventor by mail, for his examination, signiture nud affidavit, with -a letter of Instruction, etc. Our tee for preparing the case is then dne, and will be called tor. The case will then be presente lo iho Patent Oftice, and as soon as the patent is ordered to te Issned, tbo applicant will bo notified to remit the last Installment of the Government fee, uamely, byenly dellars. Inventors who do business witlt us will be notified of the slale of their appileation in the Patent Office, when it is possible tor us lo do so. We do not require (be personal attendanec of the inventor, unessll is one of great complication ; tho business ean be well done by correspondonce. When the invention consists of a new arllele of manufaclure, or a new composition, samples of ihe separate ingredionts, sufficlent to munke the experlment, and also of ihe mauutacturod, article itself must be furnished. Tho average time required to procure a palent, when the case is conducted at our agency, Is three months, We treqnently get thom through In Icss time ; but in other cuses, owing to ilelay on the part of officinls, the perlod is sometimes extended to fuur or five months, and even more. Weinake a speclal poiut to forward ow cases as rapidly as possible. Return of Models. Under the new law, {f tho upplicants cnse has been rejecled he is entitled to withdraw his model trom The Patent Office. This Inw ayplics to ull past rejected cases, and if Parties wish to obtain their nioiels through its, they can do so at a: small expense Applicetion for Patents, Designs, Trade-Marks, Labelis, ete. Uniler the new Jaw patents umy be taken out for any new form of any atiicic, alse tor tools, pulterns, castings, machine-frames, staveslates, borders, tringes, all new desigus for printing, Weaving ov tiuaping upen silks, callcoes, carpels, vil-clath, prints, pap: ang: ngs, und ofhernrticles, Trade-marks, labels, envelopes, boxes and ottles tor goods, nay also he pitented ; likewise all works of art, neinding prints, paimtings, busts, statues, bas-rellef, or compositions 1 alio, or busso relieva, new dies, impressions, ornaments to bo placod upon any article of manufacture, architectural work, ete. Our fneilities for the prompt preparation and securing of patents are of the most extcnsivo ebnracter and our charges are very moderate. Patent Office Fees, and How Payable. Nearly all the fees paynble to Ihe Patent Office are positively requirod by law to be paid in advance. For the sake of uniformity wd convenience, the remaining fees will he required to be paid In the same inainer ; that isto say, belore the labor is perforined tor which they are to be reecived in payment. The following is the tarlif’ of fees ¢stablished by law: On every application for x tesign, for 3 yenrs and six mouths Ou every appiication for n design, tor seven years y aplication for a desizu, fur tourlcen year: ap Pg iginal patent On filing a dischiimer,. appHcation for a re-is in s ndditional patent granted On eve it a on § on every applicalloutor nn extension. On the grantat cvery extension. On appeal to the Commissioner fr v Ouevery appeni to the Judges of Circuit Court, D.C. Infringements. {ho manufacture, sale, or use of a patented article, without con, sent of the owner of the patent, is an Infringement, and subiccts the infringer, by iujunetion trom the Court, lo an arrest of or prohibltlon trom the employment ot his. machinery, shop, works, factory and nen in production of the article, Tn nddition to injunction the Intringer is liable to be mulehed in treble the amount of damages awarded by the jury. The maker, the worknian, the seller, and the purchaser, 11 n user, are ni Hiabie cither collcetively ov individually. Maving aceess to all the patents, models, pnblic records, drawings and ollier documents pertaining tu the Patent .Oflice, we are pre-pared (o make examimitlous and give opluions upon all inirlngenent questions, advise as to the seopo and ground covered by patents, and direet with vigor any legal proceedings therewith counected. Our charge will be moderate, «ud propurtlonate to the lnbor involved. Appeals. In rejected and other eases, the new law provides for an appeal from the Examiner-in-chief to the Commissioner in person, on tho naviment of 1c fee nf twenty dollars. A further appeal may be mken vom the decisiar of the Commissioner to Ihe U. 8. Court, of the District of Golumbhia. These appeals are heard by any of the Juilges hetoro whom the applicant elects ti bring y i the papers, models, cte., are sont by the Cammnisstan: then reviews the case, uid cither sustains or reverses the Comjoner’s Hecision. ‘Tho party taking the appeal pays an additional dollars. The Jndee uppoaints a day of hearing. appear in ao or by keunsel to stato his case an le < gument. ive days ure nllowed the apponeit to juit in an answer, and 1 similar period to ihe nppelant for a closiug reply. Many important eases re Urought before the. Judges on appea’ and ibe declsionsof t] mimissinier are pot mnfreqnently reversed We hnve had successtul ¢x ee in conducting these appeals. ann oltr services ure rendered on mivodcrate terms. DEWEY & CO,, Agents, Mining and Scientific Press Office, Government liouse, corner San somo and Washingtou streets, San Francisca fee of iwenty-fivo The applicnnt can dt file awritten arSo