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COULTER ELECTRONICS v. J. T. BAKER CHEMICAL CO.

No. 77 C 1941.

487 F.Supp. 1172 (1980)

COULTER ELECTRONICS, INC., Plaintiff, v. J. T. BAKER CHEMICAL COMPANY, Ipco Hospital Supply Corporation, and the Rupp and Bowman Company, Defendants.

United States District Court, N. D. Illinois, E. D.

April 8, 1980.

Attorney(s) appearing for the Case

Myron C. Cass, Herbert J. Singer, I. Irving Silverman, Silverman & Cass, Chicago, Ill., for plaintiff.

Warren D. McPhee, Joseph Krieger, Richard H. Anderson, Mason, Kolehmainen, Rathburn & Wyss, Chicago, Ill., for defendants.

ORDER

BUA, District Judge.

This patent infringement suit comes before the court on defendant J. T. Baker Chemical Company's motion for partial summary judgment pursuant to Rule 56, Fed.R.Civ.P.

Defendant contends that the doctrine of file wrapper estoppel requires this court to find that defendant's Product No. 11,630, "Diluid Azide-Free" does not infringe plaintiff's Patent No. 3,962,125.

The sole patent at issue is the Armstrong Patent...

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