Manual of Patent Law: With an Appendix Upon the Sale of Patents

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Page 109 - Congress shall have power to promote the progress of science and the useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries, and to make all laws which shall be necessary and proper for carrying into execution the foregoing powers.
Page 110 - Office a written description of the same, and of the manner and process of making, constructing, compounding, and using it, in such full, clear, concise and exact terms as to enable any person skilled in the art or science to which it appertains, or with which it is most nearly connected, to make, construct, compound, and use the same...
Page 85 - Every patent or any interest therein shall be assignable in law by an instrument in writing, and the patentee or his assigns or legal representatives may in like manner grant and convey an exclusive right under his patent to the whole or any specified part of the United States.
Page 148 - That for the purpose of deceiving the public, the description and specification filed by the patentee in the patent office was made to contain less than the whole truth relative to his invention or discovery; or more than is necessary to produce the desired effect ; or, Second.
Page 148 - That he had surreptitiously or unjustly obtained the patent for that which was in fact invented by another, who was using reasonable diligence in adapting and perfecting the same; or, Third.
Page 186 - ... the party of the first part agrees to pay to the party of the second part...
Page 127 - Whenever, through inadvertence, accident, or mistake. and without any fraudulent or deceptive intention, a patentee has claimed more than that of which he was the original or first inventor or discoverer, his patent shall be valid for all that part which is truly and justly his own...
Page 122 - This provision of the act of 1836 was in turn superseded by section 53 of the act of July 8, 1870, c. 230, (16 St. 205,) which provided "that whenever any patent is inoperative or invalid, by reason of a defective or insufficient specification, or by reason of the patentee claiming as his own invention or discovery more than he had a right to claim as new...
Page 19 - any person who has invented or discovered any new and useful art, machine, manufacture, or composition of matter, or any new and useful improvement thereof, not known or used by others in this country before his invention or discovery thereof...
Page 127 - ... stating therein the extent of his interest in such patent. Such disclaimer shall be in writing, attested by one or more witnesses, and recorded in the Patent Office; and it shall thereafter be considered as part of the original specification to the extent of the interest possessed by the claimant and by those claiming under him after the record thereof.

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