Gillette Safety Razor Co. v. Standard Safety Razor Co.

MANTON, Circuit Judge.

The charge of infringement of this patent involves a consideration, of claims 1, 4, 5, 7, 8, 9, and 11 of the patent to Thompson & Smith, No. 3,858,316. In a companion appeal, we considered the Thompson patent, No. 1,815,745, where we held that the appellant, who sold blades usable in the Gillette safety razors, was not guilty of contributory infringement. 64 F(2d) 6.

The invention in this suit is claimed to be the idea of replacing the three holes in the razor blade with a slot to fit a bar to be used in the bar type razor. The patentees placed a long bar in the Thompson…