J. S. Thorn Co. v. Michael Flynn Mfg. Co.

KIRKPATRICK, District Jttdge.

This is a suit in equity for the infringement of U. S. Patent No. 1,941,432 to Doering, for a casement window structure, and the issue is chiefly concerned with the operating mechanism at the bottom of the frame, for opening and shutting the window.

Inasmuch as there is a question of the priority of another device involved, it may be noted that the earliest date which can be allowed the patentee for reduction to practice is December, 1930, that the application date of the patent is October 6, 1931, and that it issued December 26, 1933.

Infringement, if the patent is…