Legal Opinion
Crane Company v. Aeroquip Corporation
Court of Appeals for the Seventh Circuit
Decided November 15, 1974No. 73-2109 and 73-2110PublishedCited by 27 opinions
1Opinion of the Court
CUMMINGS, Circuit Judge.
In these consolidated actions, plaintiff charged defendant with breach of a 1968 patent license agreement and with patent infringement. The basic questions are whether plaintiff’s Bredtschneider patent No. 2,933,333 is valid and, if it is, whether defendant’s accused coupling infringes the patent. Both parties appeal from the judgment below.
In its memorandum opinion, the district court upheld the Bredtschneider patent as to the nine claims in issue but ruled that defendant’s modified device did not infringe them. Nevertheless, since defendant marked its modified…
2Cases cited11 opinions
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- Lear, Inc. v. AdkinsSupreme Court of the United States · 1969
- Smith v. SnowSupreme Court of the United States · 1935
- Mary S. Kraly, and Cross-Appellee v. National Distillers and Chemical Corporation, and Cross-AppellantCourt of Appeals for the Seventh Circuit · 1974
- Beckman Instruments, Inc., (Cross-Appellee) v. Technical Development Corporation and Franklin F. Offner, Defendants-Appellees(cross-Appellants)Court of Appeals for the Seventh Circuit · 1970
6 more not listed; retrieve them via the Exa API.
3Cited by27 opinions
- Kaspar Wire Works, Inc. v. Leco Engineering and MacHine Inc.Court of Appeals for the Fifth Circuit · 1978
- Smithkline Diagnostics, Inc. v. Helena Laboratories Corporation, Defendant/cross-AppellantCourt of Appeals for the Federal Circuit · 1989
- Raymond Keith Foster, Keith Mfg. Co., and Keith Sales, Co. v. Hallco Manufacturing Co., Inc., and Olof A. HallstromCourt of Appeals for the Federal Circuit · 1991
- Loctite Corporation v. Fel-Pro, Inc. And Felt Products Mfg. Co.Court of Appeals for the Seventh Circuit · 1981
- The Schlegel Manufacturing Company v. Usm CorporationCourt of Appeals for the Sixth Circuit · 1976
22 more not listed; retrieve them via the Exa API.