Legal Opinion

Minneapolis-Honeywell Regulator Company v. Midwestern Instruments, Inc.

Court of Appeals for the Seventh Circuit

Decided February 13, 1962No. 13251PublishedCited by 33 opinions

1Opinion of the Court

DUFFY, Circuit Judge.

This is a patent infringement suit involving C. A. Heiland Patent No. 2,580,-427 issued January 1, 1952, on an application filed August 11, 1944. The patent relates to a recording apparatus or oscillograph, and is used to photographically produce a graphic representation of such conditions as temperature or pressure changes, mechanical vibrations, heartbeats, sounds and many other variables.

Claims 3, 13, 14, 15, 16 and 17 are in issue. Plaintiff’s instrument is known as a Yisicorder. Defendant’s accused device is known as a Direct/Riter. Defendant’s Models 602 and 616 are…

2Cases cited6 opinions

  1. Ric-Wil Co. v. E. B. Kaiser Co.Court of Appeals for the Seventh Circuit · 1950
  2. Lewyt Corporation v. Health-Mor, Inc.Court of Appeals for the Seventh Circuit · 1950
  3. Gillman v. SternCourt of Appeals for the Second Circuit · 1940
  4. Block v. Nathan Anklet Support Co.Court of Appeals for the Second Circuit · 1925
  5. Blaw-Knox Company v. I. D. Lain Company (Inc.)Court of Appeals for the Seventh Circuit · 1956

1 more not listed; retrieve them via the Exa API.

3Cited by33 opinions

  1. Fontenot v. Mesa Petroleum Co.Court of Appeals for the Fifth Circuit · 1986
  2. Terrell J. Reese and Reese Products, Inc. v. Elkhart Welding and Boiler Works, Inc.Court of Appeals for the Seventh Circuit · 1971
  3. Lockheed Aircraft Corp. v. United StatesUnited States Court of Claims · 1977
  4. Application of Lyle B. BorstCourt of Customs and Patent Appeals · 1965
  5. Canaan Products, Inc. v. Edward Don & Company, John Sexton & Company, American Hospital Supply, Corp., North Central Airlines, Inc.Court of Appeals for the Seventh Circuit · 1968

28 more not listed; retrieve them via the Exa API.

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