Legal Opinion
Permutit Co. v. Graver Corp.
District Court, N.D. Illinois
Decided January 18, 1930No. 7909PublishedCited by 5 opinions
1Opinion of the Court
LINDLEY, District Judge.
Plaintiff seeks to enjoin defendant from manufacturing water softeners said to infringe claims 1 and 5 of patent to Robert Gans of Berlin, Germany (J. D. Riedel Aktiengelsellschaft, of Berlin, Germany, assignee) applied for August 5, 1911, issued August 22, 1916, No. 1,195,923, as follows:
Claim 1. “A water softening apparatus comprising a easing, a filter bed consisting of a layer of sand or quartz and a layer of zeolites or hydrated ahunino-silieates disposed on the layer of sand or quartz, means for permitting the passage of water through the casing, means for…
2Cases cited5 opinions
- Mast, Foos & Co. v. Stover Manufacturing Co.Supreme Court of the United States · 1900
- Permutit Co. v. WadhamCourt of Appeals for the Sixth Circuit · 1926
- Permutit Co. v. Harvey Laundry Co.Court of Appeals for the Second Circuit · 1922
- Jay v. WeinbergCourt of Appeals for the Seventh Circuit · 1919
- Safety Gas Lighter Co. v. Fischer Bros.District Court, D. New Jersey · 1916
3Cited by5 opinions
- American Infra-Red Radiant Co. v. Lambert Industries, Inc.Court of Appeals for the Eighth Circuit · 1966
- Bendix Corp. v. Balax, Inc.Court of Appeals for the Seventh Circuit · 1970
- Reeves Brothers, Inc. v. US Laminating Corp.District Court, E.D. New York · 1968
- American Infra-Red Radiant Co., Inc., a Delaware Corporation, and Hupp Corporation, a Virginia Corporation v. Lambert Industries, Inc., a Minnesota Corporation, Industrial Ceramics, Inc.,a Minnesota Corporation, and Agard L. Lambert, Lambert Industries, Inc., a Minnesota Corporation, Industrial Ceramics, Inc.,a Minnesota Corporation, and Agard L. Lambert v. American Infra-Red Radiant Co., Inc., a Delaware Corporation, and Huppcorporation, a Virginia CorporationCourt of Appeals for the Eighth Circuit · 1966
- The Bendix Corporation v. Balax, Inc.Court of Appeals for the Seventh Circuit · 1970