Buchanan v. Perkins Electric Switch Mfg. Co.

GRAY, Circuit Judge.

This is an appeal from the Circuit Court of the United States for the Eastern District of Pennsylvania. 129-Fed. 134. The appellee brought suit by a bill in equity against the appellants, for infringement of claims 3, 4 and 9 of letters patent No. 626,927, granted June 13, 1899, to the appellee, as assignee of Charles G. Perkins, for improvements in incandescent lamp sockets. The decree of the court below sustained claims 3, 4 and 9 of the patent in suit, and found the defendants to have infringed the same. The claims involved are as follows:

“(3) In combination in a…