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LAYNE-NEW YORK CO., INC. v. ALLIED ASPHALT CO., INC.

Civ. A. Nos. 70-972, 70-973.

363 F.Supp. 299 (1973)

LAYNE-NEW YORK COMPANY, INC., Plaintiff, v. ALLIED ASPHALT COMPANY, INC., Defendant, and Commonwealth of Pennsylvania, Intervenor. LAYNE-NEW YORK COMPANY. INC., Plaintiff, v. B. H. MOTT & SONS, INC., Defendant, and Commonwealth of Pennsylvania, Intervenor.

United States District Court, W. D. Pennsylvania.

August 13, 1973.

Attorney(s) appearing for the Case

John Webb, Pittsburgh, Pa., for plaintiff.

Raymond G. Hasley, Walter J. Blenko, Frank E. Coho, Pittsburgh, Pa., for defendants.

OPINION

KNOX, District Judge.

This patent case involves questions of the validity and infringement by the defendants of Patent No. 3,469,405 covering a method of preventing acid mine drainage from coal mines. Pursuant to a proper demand for jury trial, the case was tried to a jury limited initially, however, to the following issues: (1) validity of the patent, (2) whether or not the patent applicant, Richard H. Reinhold, plaintiff's assignor was the sole...

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