Paget v. Swartwout Co.

WILKIN, District Judge.

The complaint charges infringement of United States letters patent No-. 2,134,143. The answer denies infringement and alleges invalidity because of lack of invention, and anticipation. The accused device is an industrial ventilator made and sold by the defendant to Goodyear Tire & Rubber Company and installed' at its Akron plant. The patented and the accused ventilators were designed for installation on the roof of a building so as to emit heat, gas, and vapor, prevent rain from entering, and afford control of air and heat through the ventilators.

The defendant is a…