COXE, District Judge.
This is a suit for alleged infringement of the Berndt & Creighton patent, No. 2,072,416, issued March 2, 1937, for a "method of irradiating substances with active rays."
The only claims in issue are Nos. 13, 14, 16, 17 and 18, all of which were added in a renewal application after the original application had been permitted to lapse for non-payment of the final fee.
The principal defenses are invalidity for anticipation and...
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