Mershon v. O'Neill

BYERS, District Judge.

The plaintiffs sue in equity for alleged infringement of United States Letters Patent No. 1,141,402, issued June 1, 1915 (application filed June 19, 1913), and No. 1,-784,674, issued December 9, 1930 (application filed July 14, 1923). For convenience, these will be referred to hereinafter as the first and second patents.

Both were issued to the plaintiff Mershon, who, in turn, licensed the corporate plaintiff’s predecessor to make, use and sell the inventions covered by the said patents.

The device involved is known as an electrolytic condenser, and, in the form presently…