Legal Opinion
Armour Research Foundation v. C. K. Williams & Co.
Court of Appeals for the Seventh Circuit
Decided July 12, 1960No. Nos. 12701-12706PublishedCited by 12 opinions
1Opinion of the Court
DUFFY, Circuit Judge.
Plaintiffs claim infringement of Cam-ras Patent No. 2,694,656 issued on November 16, 1954, on an application filed July 25, 1947. The patent relates to magnetic recording, popularly known as “tape recording.” The first sentence of the patent states: “This invention relates to permanent magnet material and to a method of making the same.” The patent explains this magnetic material is then impregnated or coated on a nonmagnetic carrier to produce a magnetic impulse record member.
The Camras patent in suit was issued to Armour Research Foundation of Illinois Institute of…
2Cases cited5 opinions
- Elizabeth v. Pavement Co.Supreme Court of the United States · 1878
- Armour & Co. v. Wilson & Co., Inc.Court of Appeals for the Seventh Circuit · 1960
- Hazeltine Research, Inc. v. Admiral Corp.Court of Appeals for the Seventh Circuit · 1950
- Marie Magee and Donald F. Guilliams v. The Coca-Cola Company, Coca-Cola Bottling Co. Of Chicago, Inc. And Chicago Concessions, Inc.Court of Appeals for the Seventh Circuit · 1956
- Wende v. HorineCourt of Appeals for the Seventh Circuit · 1915
3Cited by12 opinions
- United States v. BessSupreme Court of the United States · 1958
- Amphenol Corporation, a Corporation of Delaware v. General Time Corporation, a Corporation of DelawareCourt of Appeals for the Seventh Circuit · 1968
- Akron Brass Company v. Elkhart Brass Manufacturing Co., Inc.Court of Appeals for the Seventh Circuit · 1965
- George R. Churchill Company, Inc. v. American Buff Company, Automatic Buff Co., Inc., Duluth Buff Co., Inc., and Speedway Buff Co., Inc.Court of Appeals for the Seventh Circuit · 1966
- Best Medium Publishing Co., Inc., Plaintiff-Counterdefendant-Appellee v. The National Insider, Inc., Defendant-Counterclaimant-AppellantCourt of Appeals for the Seventh Circuit · 1967
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