Chapter 187. for the relief of the heirs of William A
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CHAP. 187.— An Act for the relief of the heirs of William A. Graham.June 11, 1878. *Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled*,W. A. Graham’s heirs. That the heirs of William A. Graham, late of the town of Lexington, in the county of Rockbridge, and Slate of Virginia, be, and they are hereby, relieved of and from all disabilities now existing and preventing them from renewing or reviving an application by the administrator of the estate of said William A.
Graham, deceased, for a patent for a novel method of extinguishing Patent for fire-extinguisher may be applied for and issued for benefit of.fires; that such administrator be, and is hereby, authorized to renew said application, conforming the same to present rules; and that the Commissioner of Patents, be, and is hereby, authorized to grant and issue letters-patent for the invention or inventions set forth in such application; said patent, when issued, to have the *Proviso.*same force and effect, from and after its date, as though no delay had occurred in prosecuting said application, or in Vested rights.granting a patent thereon: *Provided*, That such alleged inventions shall be found to have been new and useful at the time of filing such application: *And provided further*, That all persons or parties having machines containing said inventions, or any part thereof, in use at the time of issuing such patent, shall have the right to continue the use thereof without charge or molestation; nor shall any one be liable for any infringement of the invention of the said Graham, occurring prior to the issuing of the letters-patent therefor.
Approved, June 11, 1878.