JACKSON, Judge.
On July 12, 1947, appellant filed an application for a patent for Gas Expanded Products, Serial No. 760,709.
Subsequently, the Primary Examiner finally rejected all of the claims 2, 4, and 5 as unpatentable over the following references: Semtex (Great Britain) 571,284 August 17, 1945; Sachs-Modern Plastics Pages 173-176 December 1945; Hoover et al. 2,429,060 October 14, 1947; Nye 2,461,761 February 15, 1949.
The Board of Appeals affirmed...
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