Legal Opinion
Calhoun v. State Chemical Manufacturing Company
District Court, N.D. Ohio
Decided June 5, 1957No. Civ. A. 30723PublishedCited by 5 opinions
1Opinion of the Court
MeNAMEE, District Judge.
This is an action for infringement of U. S. Letters Patent No. 2,180,795, brought by the Executors of the Estate of Niels A. Christensen, deceased. The defendant is an Ohio corporation with a regular and established place of business in this district. Jurisdiction and plaintiffs’ right to sue are admitted.
The invention claimed by the patent in suit relates to the combination of a sealing member in the form of a resilient O-ring disposed in a groove in one of a pair of relatively reciprocating members for sealing co-action against the other member and wherein the axial…
2Cases cited18 opinions
- Mercoid Corp. v. Mid-Continent Investment Co.Supreme Court of the United States · 1944
- Morton Salt Co. v. G. S. Suppiger Co.Supreme Court of the United States · 1942
- Carbice Corp. of America v. American Patents Development Corp.Supreme Court of the United States · 1931
- Goodyear Tire & Rubber Co. v. Ray-O-Vac Co.Supreme Court of the United States · 1944
- Safety Car Heating & Lighting Co. v. General Electric Co.Court of Appeals for the Second Circuit · 1946
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3Cited by5 opinions
- Calhoun v. United StatesUnited States Court of Claims · 1972
- Oak Industries, Inc. v. Zenith Electronics Corp.District Court, N.D. Illinois · 1989
- Jo. C. Calhoun, Jr., and Esther C. Young, Executors of the Estate of Niels A. Christensen (Deceased) v. The United StatesUnited States Court of Claims · 1964
- Veritas Operating Corp. v. Microsoft Corp.District Court, W.D. Washington · 2008
- Tektronix, Inc. v. United StatesUnited States Court of Claims · 1977