Hazeltine Research, Inc. v. Avco Manufacturing Corp.

ENOCH, District Judge.

This is a patent infringement suit based -upon letters patent Re. 22,055. The defenses are invalidity of the patent and non-infringement.

The case came on for hearing before the court on the pleadings and the evidence, consisting of oral testimony and documentary proofs. Witnesses were called by the respective parties, whose testimony was transcribed in the record. The court has had the benefit of argument by counsel, both orally and upon briefs.

The court has reviewed the record and briefs of counsel and weighed carefully the arguments presented and considered the…