Legal Opinion
Fehr v. Activated Sludge, Inc.
Court of Appeals for the Seventh Circuit
Decided June 24, 1936No. 5727PublishedCited by 14 opinions
1Opinion of the Court
SPARKS, Circuit Judge.
This action for patent infringement grows out of the activities transpiring at the Jones Island sewage plant at Milwaukee, Wisconsin. Appellee owned certain United States letters patent respectively covering a process and' an apparatus for purifying sewage and analogous liquids. They, together with their dates of issuance and expiration, are set forth in the margin. 1 Excepting the reissue patents, they will hereinafter be referred to by the last three numerals of their respective numbers.
The original Jones Island plant was held to infringe the first four of appellee’s…
2Cases cited20 opinions
- Miller v. Eagle Manufacturing Co.Supreme Court of the United States · 1894
- Smith v. SnowSupreme Court of the United States · 1935
- Mahn v. HarwoodSupreme Court of the United States · 1884
- Saranac Automatic MacHine Corp. v. Wirebounds Patents Co.Supreme Court of the United States · 1931
- Firestone Tire & Rubber Co. v. United States Rubber Co.Court of Appeals for the Sixth Circuit · 1935
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3Cited by14 opinions
- Neff Instrument Corporation, a Corporation v. Cohu Electronics, Inc., and Neely EnterprisesCourt of Appeals for the Ninth Circuit · 1959
- Helen Russell Pierce, of the Last Will and Testament of George Washington Pierce, Deceased v. Allen B. Du Mont Laboratories, IncCourt of Appeals for the Third Circuit · 1961
- Activated Sludge v. Sanitary Dist. of ChicagoDistrict Court, N.D. Illinois · 1946
- Maxon Premix Burner Company, Inc. v. Eclipse Fuel Engineering Co.Court of Appeals for the Seventh Circuit · 1973
- General Radio Co. v. Allen B. Du Mont Laboratories, Inc.Court of Appeals for the Third Circuit · 1942
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