Legal Opinion
Dow Chemical Co. v. Skinner
Court of Appeals for the Sixth Circuit
Decided April 15, 1952No. 11323PublishedCited by 14 opinions
1Opinion of the Court
ALLEN, Circuit Judge.
This appeal arises out of an action for infringement of Skinner patent 1,847,365 for extrusion of metal. The application was filed March 25, 1930, and the patent issued March 1, 1932. 'Claims 1, 3, 4, 5, and 6 are in issue. The Dow Chemical Company (hereinafter called Dow) asserts invalidity of the Skinner patent and denies infringement. The District Court held all claims valid and infringed.
The extrusion of solid sections of metals, including aluminum, had long been practiced. It had been attained by subjecting heated metal to pressure in a cylinder by means of a…
2Cases cited17 opinions
- Sinclair & Carroll Co. v. Interchemical Corp.Supreme Court of the United States · 1945
- Electrical Fittings Corp. v. ThomasSupreme Court of the United States · 1939
- Altvater v. FreemanSupreme Court of the United States · 1943
- Scott Paper Co. v. Marcalus Manufacturing Co.Supreme Court of the United States · 1945
- Le Roy v. TathamSupreme Court of the United States · 1853
12 more not listed; retrieve them via the Exa API.
3Cited by14 opinions
- Kemart Corp. v. Printing Arts Research Laboratories, Inc.Court of Appeals for the Ninth Circuit · 1953
- Thabet Manufacturing Company, D.B.A. American Beauty Ventilated Aluminum Awning Company v. Kool Vent Metal Awning Corporation of AmericaCourt of Appeals for the Sixth Circuit · 1955
- General Motors Corp. v. Estate Stove Co.Court of Appeals for the Sixth Circuit · 1953
- Preformed Line Products Co. v. Fanner Manufacturing Co.District Court, N.D. Ohio · 1962
- EJ Brooks Co. v. Stoffel Seals CorporationDistrict Court, S.D. New York · 1958
9 more not listed; retrieve them via the Exa API.