U.S. Circuit Court for the District of Minnesota June 20, 1878 (Andrews v. Wright)

lead-opinion

NELSON, District Judge.

This suit is brought to recover damages for an infringement of a patent, reissue No. 4,372, and for an injunction. The defences are; 1. Reissue obtained by fraud, and not for the same invention as the original. 2. Want of novelty, prior discovery and use. 3. Alleged invention for a result or effect, and not patentable. 4.