Legal Opinion
Hazeltine Research, Inc. v. General Motors Corp.
District Court, E.D. Michigan
Decided June 23, 1947No. Nos. 2426, 2436Published
1Opinion of the Court
LEDERLE, District Judge.
1.These actions involve the validity and infringement of Claims 1, 2, 3, 5, 6 and 8 of Wheeler Patent No. 1,951,685, hereafter referred to as the ’685 patent, which issued March 20, 1934, on a “Peak Detector” for radios, and Claims 1 to 12, inclusive, of Wheeler Patent No. 2,041,273, hereafter referred to as the ’273 patent, which issued May 19, 1936 for “Amplifier Volume Control”. Both patents are based upon an application, Serial No. 203,879, filed July 7, 1927, by Harold A. Wheeler. The Complaints, alleging defendant’s infringement of these patents, were filed in…
2Cases cited8 opinions
- Detrola Radio & Television Corp. v. Hazeltine Corp.Supreme Court of the United States · 1941
- United States v. ReslerSupreme Court of the United States · 1941
- Cleveland Punch & Shear Works Co. v. E. W. Bliss Co.Court of Appeals for the Sixth Circuit · 1944
- Detrola Radio & Televison Corp. v. Hazeltine Corp.Court of Appeals for the Sixth Circuit · 1940
- Hazeltine Corporation v. AbramsCourt of Appeals for the Second Circuit · 1935
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