Legal Opinion
Signode Corporation v. Weld-Loc Systems, Inc. And Strapex Ag
Court of Appeals for the Seventh Circuit
Decided February 23, 1983No. 82-2025PublishedCited by 40 opinions
1Opinion of the Court
ESCHBACH, Circuit Judge.
Signode Corporation (“Signode”) appeals from the district court’s denial of its motion for a preliminary injunction in a patent infringement case. For the reasons below, we affirm.
I
Signode has been manufacturing tools for friction welding plastic strapping since 1966. Signode is the owner of United States Patent Nos. 3,442,732 and 3,442,735, issued in 1969, which define the friction weld process and the apparatuses used in the process. The process, known as “Tension-Weld,” involves overlapping the ends of plastic strapping, forcing the ends together under pressure…
2Cases cited21 opinions
- International Salt Co. v. United StatesSupreme Court of the United States · 1947
- Aro Manufacturing Co. v. Convertible Top Replacement Co.Supreme Court of the United States · 1964
- Carbice Corp. of America v. American Patents Development Corp.Supreme Court of the United States · 1931
- Owens v. Aetna Life & Casualty Co.Supreme Court of the United States · 1981
- Brulotte v. Thys Co.Supreme Court of the United States · 1964
16 more not listed; retrieve them via the Exa API.
3Cited by40 opinions
- Roland MacHinery Company v. Dresser Industries, Inc.Court of Appeals for the Seventh Circuit · 1984
- H.M. Stickle, G. Martinez, I.M. Garcia, J.M. Davis, and B.M. Goodstein, and Double Jj Corporation-La Hacienda Mexican Food MacHinery v. Heublein, Inc.Court of Appeals for the Federal Circuit · 1983
- Roper Corporation v. Litton Systems, Inc.Court of Appeals for the Federal Circuit · 1985
- American Hospital Supply Corp. v. Hospital Products Ltd.Court of Appeals for the Seventh Circuit · 1986
- Airlines Reporting Corp. v. BarryCourt of Appeals for the Eighth Circuit · 1987
35 more not listed; retrieve them via the Exa API.