Legal Opinion
Johns-Manville Corporation v. Cement Asbestos Products Company
Court of Appeals for the Fifth Circuit
Decided July 13, 1970No. 28659PublishedCited by 38 opinions
1Opinion of the Court
DYER, Circuit Judge:
In a suit brought by Johns-Manville Corporation (J-M) against Cement Asbestos Products Company (CA.PCO) for infringement of Letters Patent No. 2,738,992, the District Court found Claims 1 and 2 invalid because of anticipation and obviousness; but if valid, there was infringement. J-M appeals. We affirm.
The patent in suit is entitled “Pipe Coupling” and is claimed to> be an improvement in the field of couplings for joining the ends of pipes. It was granted to J-M as assignee of the inventor, Robert Heisler.
The validity of this patent has previously been considered by this…
2Cases cited12 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Beckman Instruments, Inc., and Leland C. Clark, Jr., Plaintiffs-Appellants-Cross v. Chemtronics, Inc. And J. Ryan Neville, Defendants-Appellees-CrossCourt of Appeals for the Fifth Circuit · 1970
- Edward Valves, Inc., and Rockwell Manufacturing Company v. Cameron Iron Works, Inc.Court of Appeals for the Fifth Circuit · 1961
- Zero Manufacturing Company, Inc. v. Mississippi Milk Producers AssociationCourt of Appeals for the Fifth Circuit · 1966
- Edward Valves, Inc., and Rockwell Manufacturing Company v. Cameron Iron Works, Inc.Court of Appeals for the Fifth Circuit · 1961
7 more not listed; retrieve them via the Exa API.
3Cited by38 opinions
- Louisiana Power & Light Co. v. KellstromCourt of Appeals for the Fifth Circuit · 1995
- Eugene A. Wahl and Vibra Screw Feeders, Inc., and Cross-Appellees v. Carrier Manufacturing Co., Inc., and Cross-AppellantCourt of Appeals for the Seventh Circuit · 1975
- Studiengesellschaft Kohle Mbh, as Trustee for the Max-Planck-Institut Fur Kohlenforschung v. Eastman Kodak CompanyCourt of Appeals for the Fifth Circuit · 1983
- Arcadian Fertilizer, L.P. v. Mpw Industrial Services, Inc.Court of Appeals for the Eleventh Circuit · 2001
- United States Equal Employment Opportunity Commission v. W&O, Inc.Court of Appeals for the Eleventh Circuit · 2000
33 more not listed; retrieve them via the Exa API.