Legal Opinion
National Business Systems, Inc. v. AM International, Inc.
District Court, N.D. Illinois
Decided August 26, 1982No. 80 C 4915, 81 C 6227PublishedCited by 6 opinions
1Opinion of the Court
MEMORANDUM OPINION
BUA, District Judge.
' This is a declaratory judgment action seeking to have letters patent Nos. 3,272,-120 (“120 patent”), 3,340,800 (“800 patent”), and 3,763,777 (“777 patent”) held invalid, unenforceable and/or not infringed by the manufacture and sale of NBS imprinter Models 710 and 750 and of NBS imprinter Models 305 and 2025. The defendants have counterclaimed alleging willful infringement of the same patents and imprinters. This action was tried to the Court between April 13, 1982 and April 28, 1982.
I. General Description of the Patents
The ’120 patent discloses and…
2Cases cited65 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Precision Instrument Manufacturing Co. v. Automotive Maintenance MacHinery Co.Supreme Court of the United States · 1945
- United States v. AdamsSupreme Court of the United States · 1966
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3Cited by6 opinions
- National Business Systems, Inc. v. Am International, Inc.Court of Appeals for the Seventh Circuit · 1985
- Rite-Hite Corp. v. Kelley Co., Inc.District Court, E.D. Wisconsin · 1986
- Stash, Inc. v. Palmgard International, IncDistrict Court, D. Maryland · 1996
- National Business Systems, Inc. v. AM International, Inc.District Court, N.D. Illinois · 1985
- Pfizer Inc. v. Apotex Inc.District Court, N.D. Illinois · 2010
1 more not listed; retrieve them via the Exa API.