694 FIFTY-FOURTH CONGRESS. Suss. Il. Cust 391, 392. 1897. n.s,¤e¤.1vso,p.s11. under section seventeen hundred and fifty of the Revised Statutes, the certiiicate of such acknowledgment, under the hand and official seal of such notary or other officer, shall be prima facie evidence of the execution of such assignment, grant or conveyance? xcuomrcmxriiige- Sec. 6. That section forty-nine hundred and twenty-one of the ‘“"‘*“‘ Revised Statutes be, and the same hereby is, amended by adding thereto the following sentence: Liunitntivn ¤f ¤i¤ “But in any suit or action brought for the infringement of any patent £,'{,”§g£‘: "°°'"y °f there shall be no recovery of profits or damages for any infringement committed more than six years before the filing of the bill of complaint or the issuing of the writ in such suit or action, and this provision shall apply to existing causes of action,” so that the section so amended will read as follows: ·InJ¤¤c§i¤¤¤ •¤•1 rc- **81:0. 4921. The several courts vested with jurisdiction of cases {S.-°E§§§°.:.L}Z{'Z?g°Sf°r arising under the patent laws shall have power to grant injunctions alggigiw-*°2*»P-°5’· according to the course and principles of courts of equity, to prevent ' the violation of any right secured by patent, on such terms as the court may deem reasonable; and upon a decree being rendered in any such case for an infringement the complainant shall be entitled to recover, in addition to the profits to be accounted for by the defendant, the damages the complainant has sustained thereby; and the court shall assess the same or cause the same to be assessed under its direction. And the court shall the same power to increase such damages, in its discretion, as is given to increase the damages found by verdicts in actions in the nature of actions of trespass upon the case. Limimnm. •*But in any suit or action brought for the infringement of any patent there shall be no recovery of profits or damages for any infringement committed more than six years before the tiling of the bill of complaint · or the issuing of the writ in such suit or action, and this provision shall apply to existing causes of action." mxggg Sec. 7. That in every case where the head of any Department of the mm. y Government shall request the Commissioner of Patents to expedite the consideration of an application for a patent it shall be the duty of such head of a Department to be represented before the Commissioner in order to prevent the improper issue of a patent. MM- Sec. 8. That this Act shall take effect January iirst, eighteen hunl£r·p;i·i•;¤¤ ¤¤=d;·1» dred and ninety-eight, and sections one, two, three, and four, amending {,,,,;,,,2 ° *’°“ "g sections iorty-eight hundred and eighty-six, forty-nine hundred and twenty, forty-eight hundred and eightyseven, and forty-eight hundred and ninety-four of the Revised Statutes, shall not apply to any patent granted prior to said date, nor to any application tiled prior to said date, nor to any patent granted on such an application. Approved, March 3, 1897. March 3. 1897. CHAP. 392.-An Act To amend title sixty, chapter three, of the Revised Statutes ···· ~· · ·~ of the United States, relating to copyrights. Be it enacted by the Senate and House of Representatives of the United C°PF**¤*·**- State.-: of America in Omngress assembled, That section forty-nine hundred and sixty-three of the Revised Statutes of the United States be, and the same is herby, amended so as to read as follows: ,“§·j:j}j,;‘_,¥g$,},Q·*gj “Sec. 4963. Every person who shall insert or impress such notice, or iw? midi, mi22i,- words of the same purport, in or upon any book, map, chart, dra- """““" “""°¥’*"‘g*"· matic or musical composition, print, cut, engraving or photograph, or other article, whether such article be subject to copyright or otherwise, for which he has not obtained a copyright, or shall knowingly issue or mfjiggw-mr-M, sell any article bearin g a notice of United States copyright which has ` . not been copyrighted in this country; or shall import any book, photograph, chromo, or lithograph or other article bearin g such notice of copy- right or words of the same purport, which is not copyrighted in this country, shall be liable to a penalty of one hundred dollars, recoverable