Legal Opinion
U. S. Expansion Bolt Co. v. Jordan Industries, Inc.
District Court, E.D. Pennsylvania
Decided July 27, 1972No. Civ. A. 42485PublishedCited by 2 opinions
1Opinion of the Court
OPINION
JOSEPH S. LORD, III, Chief Judge.
This is a patent infringement action over which we have jurisdiction by virtue of 28 U.S.C. § 1338(a). Plaintiff is the owner of U.S. Patent No. 3,022,-701, issued on February 27, 1962. This patent relates to an anchor-type wall fastener composed of an anchor and an expanding member. Three principal defenses to this action have been set forth by the defendants. First, they maintain that the patent is unenforceable because plaintiff is guilty of laches. Secondly, they assert that the subject matter of the patent at the time of invention would have been…
2Cases cited8 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Anderson's-Black Rock, Inc. v. Pavement Salvage Co.Supreme Court of the United States · 1969
- Trio Process Corporation, in No. 71-1295 v. L. Goldstein's Sons, Inc., in No. 71-1296Court of Appeals for the Third Circuit · 1972
- Westco-Chippewa Pump Co. v. Delaware Electric & Supply Co.Court of Appeals for the Third Circuit · 1933
- Jenn-Air Corporation v. Penn Ventilator Co., Inc., Cross-AppellantCourt of Appeals for the Third Circuit · 1972
3 more not listed; retrieve them via the Exa API.
3Cited by2 opinions
- U. S. Expansion Bolt Company v. Jordan Industries, Inc.Court of Appeals for the Third Circuit · 1973
- Eagan v. U.S. Expansion Bolt Co.Superior Court of Pennsylvania · 1983