TUTTLE, District Judge.
This suit involves the Putnam patent, No. 1,537,879, for pneumatic-treaded vehicle wheel. The application for this patent was filed August 13, 1920. The patent was issued May 12, 1925.
Late in 1923 or early in 1924, the so-called "balloon" tire became generally adopted by the automobile industry, and practically all passenger automobiles now being manufactured are equipped with such tires. The plaintiff contends that the Putnam patent...
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