Court of Appeals for the First Circuit January 24, 1964, 6128_1 (Wilson Research Corporation v. Piolite Plastics Corporation)

ALDRICH, Circuit Judge.

In this action for patent infringement the district court found validity but not infringement. We first recite the facts. On July 7, 1958 appellant’s assignor, Wilson, filed an application which on August 15, 1961 ripened into patent #2,996,609. As finally allowed

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the invention was described as a translucent plastic panel for light diffusing ceilings.