Legal Opinion

Hycor Corporation v. The Schlueter Company

Court of Appeals for the Federal Circuit

Decided July 2, 1984No. Appeal 83-935PublishedCited by 73 opinions

1Opinion of the Court

BALDWIN, Circuit Judge.

This appeal is from the February 25, 1983 judgment of the United States District Court for the Western District of Wisconsin, 1 sitting without a jury, holding appellant Hycor Corporation’s (Hycor) U.S. Patent No. 3,876,548 (’548), issued April 8, 1975, entitled “Screening Method and Apparatus,” invalid under 35 U.S.C. § 103 for obviousness and 35 U.S.C. § 102(b) for being on sale and in public use more than one year prior to the filing date of the application for the subject patent. The trial court also held the patent invalid because it found that the patentee,…

2Cases cited15 opinions

  1. American Hoist & Derrick Company, Cross-Appellee v. Sowa & Sons, Inc., Cross-AppellantCourt of Appeals for the Federal Circuit · 1984
  2. Elizabeth v. Pavement Co.Supreme Court of the United States · 1878
  3. Railroad Dynamics, Inc., Appellant/cross-Appellee v. A. Stucki Company, Appellee/cross-AppellantCourt of Appeals for the Federal Circuit · 1984
  4. Frederick H. Norton v. Lawrence E. CurtissCourt of Customs and Patent Appeals · 1971
  5. Kansas Jack, Inc., Appellant/cross-Appellee v. Charles J. Kuhn and Kuhn Manufacturing Company, Inc., Appellees/cross-AppellantsCourt of Appeals for the Federal Circuit · 1983

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3Cited by73 opinions

  1. Manville Sales Corporation, Plaintiff/cross-Appellant v. Paramount Systems, Inc., Robert S. Butterworth and Anthony J. DisimoneCourt of Appeals for the Federal Circuit · 1990
  2. Smithkline Diagnostics, Inc. v. Helena Laboratories Corporation, Defendant/cross-AppellantCourt of Appeals for the Federal Circuit · 1989
  3. B. Braun Medical, Inc. v. Abbott Laboratories and Np Medical, Inc., Defendants/cross-AppellantsCourt of Appeals for the Federal Circuit · 1997
  4. Litton Industrial Products, Inc., Appellant/cross-Appellee v. Solid State Systems Corp., Appellee/cross-AppellantCourt of Appeals for the Federal Circuit · 1985
  5. Moleculon Research Corporation v. Cbs, Inc.Court of Appeals for the Federal Circuit · 1986

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