Elevator Appliance Co. v. Brooks

SWAN, Circuit Judge.

Elevator Appliance Co., Inc., as exclusive licensee, and Harry R. Cullmer, as owner, brought suit for alleged infringement of two patents, numbered respectively 1,945,734 and 2,060,283. They relate to electro-mechanical locks to be used in the hatch-way of self-service elevators. The suit was originally brought against Brooks and his sister, Mrs. Brozozowski, doing business under the firm name of Eastern Elevator Co., but after the intervention of Harry Leon, the manufacturer of the locks alleged to infringe, the plaintiffs voluntarily discontinued as against the original…