Hazeltine Corp. v. General Motors Corp.

NIELDS, District Judge.

This is the usual patent infringement suit. It charges infringement of U. S. Patent No. 2,111,483 issued March 15, 1938, to Carl E. Trube, assignor to Hazeltine Corporation, upon application filed July 2, 1926. Suit was brought April 19, 1938, thirty-five days after the issuance of the patent. The defenses are invalidity and noninfringement.

The claims originally in suit as specified in plaintiff’s bill of particulars were numbers 1 to 4, inclusive; 12 to 22, inclusive, and 28 to 38, inclusive. At the trial plaintiff withdrew all but claims 28 to 33, inclusive, and 35 to…