Ironclad Mfg. Co. v. Dairyman's Mfg. Co.

WALLACE, Circuit Judge.

The decree appealed from adjudged the validity, and the infringement by'the defendant, of claim 1 of letters patent No. 607,433, granted July 19, 1898, to Henry B. Haigh for a milk can. The assignments of error challenge the correctness of the decision in both respects. The controversy between the parties is presented in a very voluminous record, and the proofs disclose a mass of evidence, most of which is of little value upon the issues really involved. The question of the validity of the patent is to be determined by ascertaining what it describes and claims which had…