Parks-Cramer Co. v. American Monorail Co.

WARLICK, District Judge.

This is a patent suit in which infringement is charged in the usual form. The defenses likewise are the customary ones of invalidity and non-infringement. Plaintiff’s action charges the defendant with the infringement of Claim 6 of United States Letters Patent No. 2,524,-797, which issued on October 10, 1950 to it as the assignee of Grover B. Holtzclaw, the inventor. The patent rights are wholly owned by plaintiff.

Plaintiff is a corporation organized under the laws of Massachusetts, being engaged in the business of designing, manufacturing, and selling and installing…