PICARD, District Judge.
The main issue in this case is whether the Patent Office should have granted letters on the device involved, since it has been stipulated that if plaintiff has a patentable invention defendant has infringed on claims 4, 5 and 6.
There is in fact but one plaintiff, Weingarten, assignee of Turnham's patent No. 2,242,408, who operates a chain of grocery stores in the state of Texas and was a pioneer in what we know today as the self-serve...
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