Perkins Electric Switch Mfg. Co. v. United Electric Const. Co.
Court of Appeals for the Third Circuit
Appeal from the Circuit Court of the United States for the Eastern District of Pennsylvania. Suit in equity by the Perkins Electric Switch Manufacturing Company against the United Electric Construction Company. Decree for defendant, and complainant appeals.
1Opinion of the Court
. BUFFINGTON, Circuit Judge.
In the court below the appellant, hereafter called the Perkins Company, the owner of patent No. 626,-927, issued June 13, 1899, to Charles C. Perkins, for an incandescent lamp socket, filed a bill against the appellee, hereafter called the United Company, charging infringement of the fourth and sixth claims thereof. In an opinion reported in 187 Fed. 942, that court held there was no infringement. From a decree dismissing the bill, the Perkins-Company appealed to this court.
*367The patent has been the subject of several cases. Tn this circuit its validity was sustained…
2Cases cited5 opinions
- Buchanan v. Perkins Electric Switch Mfg. Co.Court of Appeals for the Third Circuit · 1905
- Perkins Electric Switch Mfg. Co. v. Buchanan & Co.U.S. Circuit Court for the District of Eastern Pennsylvania · 1904
- Yost Electric Mfg. Co. v. Perkins Electric Switch Mfg. Co.Court of Appeals for the Sixth Circuit · 1910
- Perkins Electric Switch Mfg. Co. v. KnowlesU.S. Circuit Court for the District of Massachusetts · 1910
- Perkins Electric Switch Mfg. Co. v. United Electric Const. Co.U.S. Circuit Court for the District of Eastern Pennsylvania · 1911