Majority — Strong J.
Syllabus
Reissued letters-patent No. 5328, granted to William T. Garratt March 18, 1873, for a new and useful improvement in lubricators, infringe letters-patent No. 111,881, granted to Nicholas Seibert Feb. 14,1871, for a new and useful improvement in lubricators. They are, therefore, void.delivered the opinion of the court.
This bill is founded upon the act of Congress of July 8,1870
The answer of the defendant does not deny the grant of the several letters-patent, as charged in the bill, at the several dates mentioned, nor does it directly deny that his reissued letters are an interference with those granted to the complainant on the 14th of February, 1871. But it avers that in the Patent
In view of such pleadings, it is hardly necessary to inquire whether there is an interference. The answer does not deny it. It rather impliedly admits it. And if it did not, a comparison of the complainant’s and the defendant’s specifications, including the models and drawings, precludes all doubt that both patents are for the same invention, and that the arrangement of devices in each produces the same result in substantially the same way.
All that remains, therefore, is to determine whether Seibert was the first and original inventor of the invention, or whether the invention was first made by Garratt, the defendant.
Seibert’s patent, as we have stated, was granted on the fourteenth day of February, 1871, for a new and useful improvement in lubricators. He had previously (in 1869, Sept. 14) obtained a patent for a lubricator, in which hydrostatic pressure in forcing the lubricant from its cup, or reservoir, was found to act beneficially, though the patent did not claim that specifically, and the inventor seems not to have been aware at that time of its value. The model for this patent Seibert procured to be made by Garratt. Subsequently, having discovered its value in May, 1870, he caused to be made a new arrangement, by which the lubricant reservoir was made to stand vertically, instead of horizontally, as in his first invention, and hydrostatic pressure was applied near its base at the bottom of the lubricant. For this arrangement, he took out his patent of February, 1871. The principle was manifestly'the same as that revealed in the earlier patent, though the arrangement for its operation was different. In the one, the lubricant and the condensed water were separated by a piston; in the other, by the difference of their specific gravities. It is not, however, very material to determine that Seibert’s invention was made before May, 1870; for we are of opinion that even if it was not
Without going minutely over the evidence, we may notice that after Garratt caused the pipe to be put on the Roscoe lubricator, and after he had made Seibert’s first model, he obtained drawings of the Seibert device, and had a model
Decree affirmed.