Legal Opinion
Earl R. Ortman, D/B/A Advance Pump & Equipment Co. v. Herbert W. Maass, D/B/A Herb. Maass Service
Court of Appeals for the Seventh Circuit
Decided February 16, 1968No. 16443_1PublishedCited by 19 opinions
1Opinion of the Court
HASTINGS, Chief Judge.
Defendant-appellant Herbert W. Maass appeals from an adverse judgment entered after trial on plaintiff-appellee Earl R. Ortman’s complaint for patent infringement.
Appellee charges that appellant’s device infringes three of the four claims of appellee’s Patent No. 2,707,030, filed April 24, 1953, and issued April 26, 1955.
Appellant denies infringement and asserts the invalidity of appellee’s patent on grounds of anticipation by prior art patents, unpatentable aggregation and obviousness. Appellant also contends appellee acquiesced in the alleged infringement and acted…
2Cases cited18 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
- Copease Manufacturing Co. v. American Photocopy Equipment Co.Court of Appeals for the Seventh Circuit · 1961
- American Infra-Red Radiant Co. v. Lambert Industries, Inc.Court of Appeals for the Eighth Circuit · 1966
- Oliver F. Marston v. J. C. Penney Company, Inc., Oliver F. Marston v. J. C. Penney Company, Inc.Court of Appeals for the Fourth Circuit · 1965
13 more not listed; retrieve them via the Exa API.
3Cited by19 opinions
- Panduit Corporation v. Burndy Corporation and Burndy Midwest, Inc.Court of Appeals for the Seventh Circuit · 1975
- Uarco Incorporated, a Corporation v. Moore Business Forms, Inc., a CorporationCourt of Appeals for the Seventh Circuit · 1971
- Elbert C. Leach v. Rockwood & Co.Court of Appeals for the Seventh Circuit · 1968
- Besly-Welles Corporation v. Balax, Inc.District Court, E.D. Wisconsin · 1968
- Lemelson v. Fisher Price Corp.District Court, S.D. New York · 1982
14 more not listed; retrieve them via the Exa API.