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patent of the United States may be granted to him therefor, vesting in him and his legal representatives the exclusive right to the same upon the terms and conditions expressed in the act [or acts] of congress in such case made and provided; the petitioner being a citizen of the United States, and having paid thirty dollars into the treasury of the United States, and having otherwise complied with the provisions of said act [or acts.]

V. Dec. 18

S. C.

WHEREAS L.

FORM OF THE PATENT.

has alleged that he has invented a new and useful improvement [or machine, composition of matter, &c.] which he states has not been known or used before his application; has made oath that he is a citizen of the United States, [or subject of some foreign government,] that he verily believes that he is the original and first inventor or discoverer of the said improvement, and that the same hath not, to the best of his knowledge and belief, been previously known or used; has paid into the treasury of the United States the sum of dollars, and presented a petition to the commissioner of patents, signifying a desire of obtaining an exclusive property in the said improvement and praying that a patent may be granted for

that purpose.

day of

one

These are therefore to grant, according to law, to the said L. his heirs, administrators, or assigns, for the term of fourteen years from the thousand eight hundred and exclusive right and liberty of making, constructing, using, and vending to others to be used, the said

the full and

improvement, a description whereof is given in the words of the said L. in the schedule hereunto annexed, and is made a part of these presents.

In testimony whereof, I have caused these letters to be made Patent, and the seal of the Patent Office has been hereunto affixed.

day of

in

Given under my hand at the city of Wash-
ington, this
in the year of our Lord one thousand
eight hundred and
Independence of the United States of
America the

Countersigned and Sealed with the

and of the

J. F. Secretary of State.

Commissioner of Patents.

Seal of the Patent Office.

H. L. E.

INDEX.

ABANDONMENT, of an invention to be public, 200.
ABSTRACT PROPOSITION, on the subject of a patent, 123.
ACT OF CONGRESS, 341.

ADMINISTRATORS, may take out a patent, 79.

AFFIDAVIT, form of, 298.

AGREEMENT, for shares before taking out a patent, 319—
to Assign, 321.

ALIENS, 36.

APPEAL, to board of examiners, 218.
APPLICATIONS, interfering, 208-309.
APPLICATION, of a principle, 113.
ARKWRIGHT'S PATENT, 284, n.
ART, as a subject of a patent, 123.
ASSIGNEES, before grant of patent, 77.

ASSIGNMENT of a patent, 321.

ATTESTATION of the specification, 297.

AWARD, of examiners, 307.

BAINBRIDGE'S PATENT, 259.

BOUNTIES, as an encouragement to inventions, 24.
BROUGHAM, Lord's, act, 295, n.

CAVEAT, 220.

CHANGE OF FORM, merely, not patentable, 140.

COCHRANE'S PATENT, 234.

COMBINATION, 130-infringement of, 338.

COMMISSIONER OF PATENTS, his authority, 305.
COMMITTEE of House of Commons, Report of, 27, n.
COMPOSITIONS of MATTER, as a patentable subject, 128;
deposit of specimen, 294.

CONFLICTING CLAIMS, 218-309.

CRUMPTON'S INVENTION in spinning, 285, n.

DEDICATION of an invention to the public, 200.
DELAY to take a patent, 200.

DESCRIPTION previous, in a printed work, defeats the pa-
tent, 195.

DISCRETION of Executive officers in granting patents, 39,
40, 42, 43, 44, 45, 46.

DOLLAND'S PATENT, 184.

DRAWINGS may be referred to in the specification, 282,
291; to be annexed, 300.

EFFECT, as a subject of a patent, 121; must be produced,
126.

ENCOURAGEMENT, different kinds, 22.

EXAMINERS, appeal to, 307.

EXECUTORS, may take out patent, 79.
EXPERIMENTS, delay to make, 202.

FEE, 302.

FOREIGN INVENTIONS, patentable, 199.
FOREIGN PATENT, taken by patentee, 218.

FORM, change of, not patentable, 148; does not prevent be-
ing an infringement, 337.

HARGRAVE'S INVENTION in spinning, 285, n.

IDENTITY of machines and processes, 144, 336.
IMPORTED INVENTIONS, 29, 69, 197.

IMPROVEMENT, is patentable, 131, 275.

INFRINGEMENT, what is, 325; by making, 327; by using,
327-336; changing form only, 337; by selling,

336.

INTERFERING APPLICATIONS, 218, 309.
INTRODUCERS of an invention, 29, 69, 197.

INVENTION, property in depends on legislation, 11; diffi-
culties of, 12; imported, 29, 69, 197; sufficiency

of, 143; legality of, 151; usefulness of, 152;
originality of, 75, 168.

INVENTIONS, different, cannot be joined in a patent, 224.
INVENTORS, joint, 72.

JEFFERSON, THOMAS's remarks upon patent laws, 4,
42, 44, n.

JOBBERS, 58.

JURISPRUDENCE on patents, its character and spirit, 61.

LEGALITY of invention, 151.

LEGISLATION on patents, motives and principles of, 3—26.
LETTERS PATENT, defined, 1; not matter of mere fa-
vor, 7, 8, 9; public has an interest in granting,
15, 16.

LITHOGRAPHY, invention of, 20.

MACHINE, patent for a part of one, 227.

MAKING, an infringement, 327.

MANUFACTURE, a subject of a patent, 86.

MATERIALS, as subjects of patents, 127; change of, 140.

MATTER, composition of, patentable, 128, 294.

METCALF'S PATENT, 234, 256.

METHOD, patentable, 105.

MISTAKE, in specification, if not material, does not defeat

patent, 283.

MODELS, to be delivered, 300.

MONOPOLY, temporary, the best encouragement, 26.

NEW, must be distinguished from old, 265.

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