Legal Opinion
Stewart-Warner Corporation v. City of Pontiac, Michigan and American Sign & Indicator Corp.
Court of Appeals for the Federal Circuit
Decided July 18, 1985No. Appeal 84-1026PublishedCited by 30 opinions
1Opinion of the Court
PAULINE NEWMAN, Circuit Judge.
Appeal from final judgment of the United States District Court for the Eastern District of Michigan, holding that claims 1-4 of U.S. Patent No. 3,941,926 (the ’926 patent), invented by Gregory Slobodzian, Stanley Zielinski, and Robert Payne, and assigned to Stewart-Warner Corporation, are invalid under 35 U.S.C. § 103 and are not infringed. We affirm the holding of noninfringement and reverse the holding of invalidity.
The Invention
The claimed invention is a display system such as is used for large scoreboards in sports arenas. The display is a moving video image,…
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
- Stratoflex, Inc. v. Aeroquip CorporationCourt of Appeals for the Federal Circuit · 1983
- Sanitary Refrigerator Co. v. WintersSupreme Court of the United States · 1929
- White v. MurthaCourt of Appeals for the Fifth Circuit · 1967
13 more not listed; retrieve them via the Exa API.
3Cited by30 opinions
- Interconnect Planning Corporation v. Thomas E. Feil, Robert O. Carpenter, v Band Systems, Inc., and Turret Equipment Corp.Court of Appeals for the Federal Circuit · 1985
- Mannesmann Demag Corporation, Cross-Appellee v. Engineered Metal Products Co., Inc., Cross-AppellantCourt of Appeals for the Federal Circuit · 1986
- Texas Instruments, Inc. v. United States International Trade CommissionCourt of Appeals for the Federal Circuit · 1986
- Del Mar Avionics, Inc., Appellee/cross-Appellant v. Quinton Instrument Co., Appellant/cross-AppelleeCourt of Appeals for the Federal Circuit · 1987
- General American Transportation Corporation v. Cryo-Trans, IncorporatedCourt of Appeals for the Federal Circuit · 1996
25 more not listed; retrieve them via the Exa API.