Legal Opinion
Cleeton v. Hewlett-Packard Company
District Court, D. Maryland
Decided March 30, 1972No. Civ. 16092PublishedCited by 6 opinions
1Opinion of the Court
FRANK A. KAUFMAN, District Judge:
Plaintiffs, the holders of United States Letters Patents No. 2,452,549 (hereinafter ’549) and No. 2,471,413 (hereinafter ’413), allege infringement of both of said patents by defendant. The ’549 patent, issued on November 2, 1948 on an application filed June 24, 1939, discloses a double pulse generator for producing pairs of voltage pulses to be used to test electronic equipment. Claim 13 of that patent, which is the only claim of that patent involved in this proceeding, provides :
In combination, an electron discharge device pulse producing trigger circuit…
2Cases cited53 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- The Barbed Wire PatentSupreme Court of the United States · 1892
- Cuno Engineering Corp. v. Automatic Devices Corp.Supreme Court of the United States · 1942
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3Cited by6 opinions
- Ex-Cell-O Corp. v. Litton Industrial Products, Inc.District Court, E.D. Michigan · 1979
- Laminex, Inc. v. FritzDistrict Court, N.D. Illinois · 1974
- Itek Corp v. Information International, Inc.District Court, D. Massachusetts · 1979
- Cleeton v. Hewlett-Packard CompanyCourt of Appeals for the Fourth Circuit · 1973
- Parker v. FriletteCourt of Customs and Patent Appeals · 1972
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