Thomson-Houston Electric Co. v. Jeffrey Mfg. Co.
Court of Appeals for the Sixth Circuit
Appeal from the Circuit Court of the United States for the Southern District of Ohio.
1Opinion of the Court
TAFT, Circuit Judge.
This is an appeal from a decree dismissing a hill to enjoin the infringement of claims 2, 4, 8, 12, and 16 of patent No. 495,443, issued to Charles J. Van Depoele for improvements in suspended switches and traveling contacts for electric railways. The sole question in the case is whether the patent sued on is rendered invalid by patent No. 424,695, issued to the same inventor, for improvements in the same art. The question was stated hy this court in Thomson-Houston Electric Co. v. Ohio Brass Co., 26 C. C. A. 107, 80 Fed. 712, but was not decided. We there said:
“We come…
2Cases cited3 opinions
- Miller v. Eagle Manufacturing Co.Supreme Court of the United States · 1894
- Thomson-Houston Electric Co. v. Ohio Brass Co.Court of Appeals for the Sixth Circuit · 1897
- Thomson-Houston Electric Co. v. Hoosick Ry. Co.Court of Appeals for the Second Circuit · 1897
3Cited by12 opinions
- Thomson-Houston Electric Co. v. Black River Traction Co.Court of Appeals for the Second Circuit · 1905
- Dayton Fan & Motor Co. v. Westinghouse Electric & Mfg. Co.Court of Appeals for the Sixth Circuit · 1902
- Milloy Electric Co. v. Thompson-Houston Electric Co.Court of Appeals for the Sixth Circuit · 1906
- Gibbs v. Montgomery Ward & Co.District Court, D. Maryland · 1927
- Lowell v. TriplettCourt of Appeals for the Fourth Circuit · 1935
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