District Court, W.D. Pennsylvania April 16, 1963, Civ. A. No. 62-275 (Hamilton v. Mid-West Abrasive Co.)

WILLSON, District Judge.

This is an action by plaintiff, Alfred E. Hamilton, for money damages and in-junctive relief against the defendant, Mid-West Abrasive Company, for infringement of plaintiff’s United States Letters Patent No. 2,442,042, issued May 25, 1948.