Legal Opinion

L. E. Sauer MacHine Company, Inc. v. Corrugated Finishing Products, Inc. And Shadeland Manufacturing Company, Inc.

Court of Appeals for the Seventh Circuit

Decided February 23, 1981No. 79-2509, 80-1086PublishedCited by 9 opinions

1Opinion of the Court

WISDOM, Senior Circuit Judge.

This is a patent infringement suit. After trial the district court found the plaintiff’s patent invalid for obviousness and entered judgment for the defendants. We reverse.

The patent in question is No. 3,522,754, issued to Louis E. Sauer and entitled “Reinforced Freewheeling Resilient Cover for Rotary Die-Cutting Anvil”. It describes a device used in making corrugated containers — cardboard boxes, in plain words. The first step in boxmaking is to cut the paperboard stock into the proper shape and size according to the dimensions of the box desired. This cutting is…

2Cases cited17 opinions

  1. Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
  2. Sakraida v. Ag Pro, Inc.Supreme Court of the United States · 1976
  3. Wyeth Laboratories v. ReyesSupreme Court of the United States · 1974
  4. Kenneth Reiner and Frank A. Klaus, Jr., D/B/A Kaynar Company and Kaynar Mfg. Co., Inc. v. I. Leon Co., Inc.Court of Appeals for the Second Circuit · 1960
  5. Republic Industries, Inc. v. Schlage Lock CompanyCourt of Appeals for the Seventh Circuit · 1979

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

3Cited by9 opinions

  1. Peter M. Roberts v. Sears, Roebuck & Co.Court of Appeals for the Seventh Circuit · 1984
  2. Deere & Company v. International Harvester CompanyCourt of Appeals for the Seventh Circuit · 1981
  3. Novo Industri A/s v. Travenol Laboratories, Inc., Gb Fermentation Industries, Inc., and Gist-Brocades, N.V.Court of Appeals for the Seventh Circuit · 1982
  4. Dicar, Inc. v. LE Sauer MacHine Co., Inc.District Court, D. New Jersey · 1982
  5. Brunswick Corporation v. Champion Spark Plug CompanyCourt of Appeals for the Seventh Circuit · 1982

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

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