Angle v. Richardson

McCORMICK, District Judge.

The complainants, Anna Hopkins Angle and The S. S. White Dental Manufacturing Company, a corporation, are respectively owner and exclusive licensee of letters patent No. 1,584,501, granted May 11, 1926, to Edward H. Angle for “Orthodontic Appliance.”

On April 2, 1934, they filed their bill in equity against Sidney Richardson as defendant, to restrain infringement by him of said patent and for an accounting. By his answer filed herein on May 14, 1934, the defendant raised issue by averring:

1. That the patent is invalid in the light of the prior art.

2. That Edward H.…