Legal Opinion
Powder Power Tool Corporation v. Powder Actuated Tool Company, Inc., and Frank J. Klunk
Court of Appeals for the Seventh Circuit
Decided January 17, 1956No. 11412_1PublishedCited by 57 opinions
1Opinion of the Court
DUFFY, Chief Judge.
Defendants are charged with, infringement of U. S. Patent No. 2,637,241 issued on May 5, 1953, to C. R. Webber, et al., covering “stud for explosive installations.” The complaint also alleged unfair competition. Defendants denied any unfair competition and insisted the trial court had no jurisdiction as to that portion of plaintiff’s asserted claim. Defendants alleged nonvalidity of the patent because of • anticipation and lack of novelty or invention, and because of late insertion of claims after defendants’ structure became known to plaintiff, and after it had been in…
2Cases cited16 opinions
- McNutt v. General Motors Acceptance Corp.Supreme Court of the United States · 1936
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Hurn v. OurslerSupreme Court of the United States · 1933
- Lincoln Engineering Co. v. Stewart-Warner Corp.Supreme Court of the United States · 1938
- Sinclair & Carroll Co. v. Interchemical Corp.Supreme Court of the United States · 1945
11 more not listed; retrieve them via the Exa API.
3Cited by57 opinions
- Autogiro Company of America v. The United StatesUnited States Court of Claims · 1967
- Harry A. Pursche v. Atlas Scraper and Engineering Co., a Corporation, Atlas Scraper and Engineering Co., a Corporation v. Harry A. PurscheCourt of Appeals for the Ninth Circuit · 1962
- John P. O'Brien v. Westinghouse Electric CorporationCourt of Appeals for the Third Circuit · 1961
- Skil Corporation v. Rockwell International Corp.District Court, N.D. Illinois · 1974
- Industrial Electronics Corp. v. ClineCourt of Appeals for the Third Circuit · 1964
52 more not listed; retrieve them via the Exa API.