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ILLINOIS TOOL WORKS INC. v. GRIP-PAK, INC.

No. 89 C 5274.

725 F.Supp. 951 (1989)

ILLINOIS TOOL WORKS INC., Plaintiff, v. GRIP-PAK, INC., Defendant.

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

December 4, 1989.

MEMORANDUM OPINION

BRIAN BARNETT DUFF, District Judge.

Illinois Tool Works Inc. ("ITW") filed suit in this court on June 30, 1989, claiming that Grip-Pak, Inc. has infringed on two of its patents, U.S. Patent Nos. 3,733,100 (hereafter the "100 Patent"; one representation of it appears as Exhibit A to this opinion), and 4,219,117 (hereafter the "117 Patent"; a drawing of it appears as Exhibit B). Each patent describes...

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