STEPHENS, Circuit Judge.
Solex Laboratories, Inc., as the assignee of Kevin M. Tuohy, was issued Patent No. 2,510,438 on June 6, 1950. The patent claims a contact vision corrective lens which fits on the cornea
Contact lenses are admittedly old in the art of vision correction. However, the contact lenses in general use prior to the Tuohy patent were shaped to the identical curvature of the fitted eye and were held...
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