McDowell v. Kurtz
Court of Appeals for the Third Circuit
Appeal from the Circuit Court of the United States for the Western District of Pennsylvania. This was a suit in equity by Jacob H. Kurtz, trading as the National Manufacturing Company, against D. F. McDowell and others, trading as the Pittsburgh Ring Company, to restrain the infringement of a patent. From an interlocutory order granting a preliminary injunction, defendants appeal.
1Opinion of the Court
ACHE SOX, Circuit Judge.
This is an appeal from an interlocutory order or decree granting a preliminary injunction restraining the appellants, who were the defendants below, from infringing letters patent No. 410,168, for a band or ring for the protection of the screw threads of pipes, granted on November 11, 1890, to John A. Kurtz, and now owned by the appellee, the plaintiff below. The court below held that the defendants infringed the first claim of the patent, which claim is as follows:
“The device tor protecting the screw-tlireaded ends of pipes, consisting of a band provided with flanges…
2Cases cited3 opinions
- Industrial & Mining Guaranty Co. v. Electrical Supply Co.Court of Appeals for the Sixth Circuit · 1893
- Robinson v. SatterleeU.S. Circuit Court for the District of California · 1874
- Goodyear Dental Vulcanite Co. v. FolsomUnited States Circuit Court · 1880
3Cited by4 opinions
- Adam v. FolgerCourt of Appeals for the Sixth Circuit · 1903
- Zenith Laboratories, Inc. v. Eli Lilly and Co.District Court, D. New Jersey · 1978
- F. C. Austin Mfg. Co. v. American WellworksCourt of Appeals for the Seventh Circuit · 1902
- Thompson v. Second Ave. Traction Co.Court of Appeals for the Third Circuit · 1899