King Ventilating Co. v. St. James Ventilating Co.

MOLYNEAUX, District Judge.

This is a suit for an injunction and accounting for alleged infringement of United States patent No. 50,624, applied for January 19,1917, and granted April 17, 1917. The defenses are: (1) Invalidity of the patent for want of patentable invention. (2) Anticipation. (3) Noninfringemen't.

Both King Ventilating Company and St. James Ventilating Company are Minnesota corporations, duly incorporated under the laws of the state of Minnesota. The defendant C. C. Jolly is the president and manager of the defendant company; the plaintiffs are engaged in manufacturing and…