FRANCIS J. W. FORD, District Judge.
This is an action for infringement of United States Patent No. 2,710,461, issued June 14, 1955, on the application of Nathan Hack, filed July 14, 1952, for resilient shoe soles. Plaintiff Ripple Sole Corporation is now owner of the patent. Defendant denies infringement and the validity of the patent.
The Hack sole is described in the three claims, all alleged to be infringed, as follows:
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