Crowell

A decree adjudicating -to be valid and subsisting, a license agreement from appellant to appellee, and a license agreement from appellee to appellant, is challenged by the latter.

Appellee filed a bill alleging ownership of patent No. ,1,685,307 issued to Baker, September 25, 1928; patent to Baker No. 1,748,007, issued February 18, 1930; and patent to Mellin, No. 1,859,593, issued May 24, 1932; and infringement thereof by appellant. Appellant answered, alleging among other things that he had a license from appellee to manufacture and sell the subject matter of each claim alleged to be infringed. In, a counter-claim appellant alleged infringement of patent No. 1,432,017, re-issue patent No. 16,516, issued to him on October 17, 1922 and January 4, 1927, respectively. In answer to the counter-claim appellee alleged that on August 1, 1935, appellant had granted it a license to manufacture and sell devices embodying the inventions of the last named patent.

Had further pleadings been permitted, the issues thereunder would have been, ac *575 cording to briefs of counsel, whether or not the license granted appellee had been rescinded by appellant for (1) fraud, (2) mistake, or (3)…