MR. JUSTICE REED delivered the opinion of the Court.
The issue here is the validity of United States Patent No. 2,118,468 which covers a "method of casting articles of intricate design and a product thereof."
The patent was granted to Jungersen on May 24, 1938. In 1941, Ostby and Barton Company instituted in the United States District Court for the District of New Jersey an action for a declaratory judgment that the patent was invalid and not infringed. Jungersen...
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