Legal Opinion
Warden v. City of St. Louis
Court of Appeals for the Eighth Circuit
Decided February 14, 1944No. 12727PublishedCited by 4 opinions
1Opinion of the Court
SANBORN, Circuit Judge.
Henry I. Warden, the patentee of United States Letters Patent No. 1,955,569, which were applied for June 15, 1931, and issued April 17, 1934, sued the City of St. Louis for infringement of Claim 3 of the patent. The defenses were invalidity and noninfringement. The District Court found Claim 3 to be invalid, and entered a decree for the City, from which this appeal is. taken. Warden asserts that the finding of the District Court that the claim is invalid is clearly erroneous.
Claim 3 of the patent in suit reads as follows: “A license tag for a motor vehicle, comprising a…
2Cases cited8 opinions
- National Hollow Brake-Beam Co. v. Interchangeable Brake-Beam Co.Court of Appeals for the Eighth Circuit · 1901
- Roberts v. RyerSupreme Court of the United States · 1875
- Frederick R. Stearns & Co. v. RussellCourt of Appeals for the Sixth Circuit · 1898
- Tropic-Aire, Inc. v. Sears, Roebuck & Co.Court of Appeals for the Eighth Circuit · 1930
- Ford Motor Co. v. Parks & Bohne, Inc.Court of Appeals for the Eighth Circuit · 1927
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3Cited by4 opinions
- Trico Products Corporation v. Delman Corporation Delman Corporation v. Trico Products CorporationCourt of Appeals for the Eighth Circuit · 1950
- Contour Saws, Inc. v. The L.S. Starrett CompanyCourt of Appeals for the First Circuit · 1970
- Pennsylvania Crusher Co. v. Bethlehem Steel Co.District Court, W.D. Pennsylvania · 1951
- Weil-Kalter Mfg. Co. v. Sel-Mor Garment Co.Court of Appeals for the Eighth Circuit · 1953