442 
Patents. 
thus paid, shall, be in full for the sundry services, to be performed 
in the office of the secretary of state, consequent on such petition, 
and shall pass to the account of clerk-hire in that office. Provid- 
ed nevertheless^ That fbr every copy, which may be required at 
the said office, of any paper respecting any patent, that has been 
granted, the person obtaining such copy, shall pay at the rate of 
twenty cents, for evciy copy-sheet of one hundred words, and for 
every copy of a drawing, the party obtaining the same, shall pay 
two dollars : Of which payments, an account shall be rendered, 
annually, to the treasury of the United States, and they shall also 
pass to the account of clerk-hire, in the office of the secretary of 
state. 
Sect. XII. repeals the act passed April 10, 1.790, (Vol. I. p. 
99,) %vith the proviso^ That nothing, contained in this act, shall be 
construed to invalidate any patent, that may have been granted 
under the authority of the said act ; and all patentees under the 
said act, their executors, administrators and assigns, shall be con- 
sidered within the purviev^r of this act, in respect to the violation 
of their rights : Provided, such violation shall be committed, after 
the passing of this act. ^ 
ACT of April 17, 1800. (Vol. V. p. 88.) 
10. Sect, I. All and singular the rights and privileges given,^ 
intended or provided to citizens of the United States, respecting 
patents, for new inventions, discoveries, and improvements, by the 
act entitled An act to promote the progress of useful arts, and to 
repeal the act heretofore made for that purpose,” shall be, and 
hereby are extended and given to all aliens who at the time of pe- 
titioning in the manner prescribed by the said act, shall have re- 
sided for two years within the United States, which privileges shall 
be obtained, used, and enjoyed, by such persons, in as full and am- 
ple manner, and under the same conditions, limitations and re- 
strictions, as by the said act is provided and directed in the case 
of citizens of the United States. Provided always^ That every 
person petitioning for a patent for any invention, art or discovery, 
pursuant to this act, shall make oath or affirmation before some 
p erson duly authorized to administer oaths, before such patent shall 
be granted, that such invention, art or discovery hath not, to the 
best of his or her knowledge or belief, been known or used either 
in this or any foreign country ; and that every patent which shall 
be obtained pursuant to this act, for any invention, art or discove- 
ry, which it shall afterwards appear had been known or used pre- 
