Legal Opinion
O. M. I. Corp. v. Kelsh Instrument Co.
District Court, D. Maryland
Decided May 18, 1959No. Civ. A. No. 10231PublishedCited by 7 opinions
1Opinion of the Court
R. DORSEY WATKINS, District Judge.
This is an action for a declaratory judgment brought by O. M. I. Corporation of America and Ottico Meccanica Italiana E Rivelamenti Aerofotogrammetrici S. p. A., plaintiffs 1 against Kelsh Instrument Company, Inc. and Harry T. Kelsh.2 The suit seeks a declaration that Patent No. 2,492,870, issued December 27, 1949 on application filed January 20, 1948, for a “Stereoscopic Projection Map-Making Instrument” is invalid and not infringed by O. M. I. In its answer, Kelsh denied the allegations of O. M. I. essential for its recovery, and counterclaimed for a…
2Cases cited19 opinions
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Loom Co. v. HigginsSupreme Court of the United States · 1882
- Diamond Rubber Co. of New York v. Consolidated Rubber Tire Co.Supreme Court of the United States · 1911
- Mumm v. Jacob E. Decker & SonsSupreme Court of the United States · 1937
- Hoeltke v. C. M. Kemp Mfg. Co.Court of Appeals for the Fourth Circuit · 1936
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3Cited by7 opinions
- Diamond International Corporation v. WalterhoeferDistrict Court, D. Maryland · 1968
- Porter-Cable MacHine Co. v. Black & Decker Manufacturing Co.District Court, D. Maryland · 1967
- O.M.I. Corp. of America v. Kelsh Instrument Co.Court of Appeals for the Fourth Circuit · 1960
- Diamond International Corp. v. Maryland Fresh Eggs, Inc.District Court, D. Maryland · 1974
- Entron of Maryland, Inc. v. Jerrold Electronics Corp.District Court, D. Maryland · 1960
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