W. R. GRACE & CO. v. PARK MANUFACTURING COMPANY

No. CV 70-131-D.

378 F.Supp. 976 (1974)

W. R. GRACE & CO., a corporation, Plaintiff, v. PARK MANUFACTURING COMPANY, a corporation, et al., Defendants.

United States District Court, E. D. Illinois.

March 29, 1974.


Attorney(s) appearing for the Case

F. Daniel Welsch, Graham, Meyer, Young, Welsch & Maton, Danville, Ill., George T. Mobille and George M. Sirilla, Cushman, Darby & Cushman, Washington, D. C., John J. Toney, Duncan, S. C., for plaintiff.

John B. Jenkins, Gunn, Hickman, Kesler, Jenkins, & Vogel, Ltd., Danville, Ill., and Michael G. Berkman, Kegan, Kegan & Berkman, and Thomas F. McWilliams, Chicago, Ill., for defendants.


OPINION AND FINDINGS OF FACT AND CONCLUSIONS OF LAW

WISE, Chief Judge.

This matter is before the Court on a complaint for infringement of three United States patents owned by the plaintiff, W. R. Grace & Co. The patents relate to double wall, hollow plastic containers made by blow molding methods and utilizing specially designed apparatus. Specifically, the patent claims in issue are claims 1-6 of U. S. patent No. 3,317,955, granted May 9, 1967, and...

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