JACKSON, Associate Judge.
Appellants filed an application for a patent in the United States Patent Office alleging an improved process for the alkylation of olefins, particularly butylenes, by isobutane to produce isoparaffins, particularly iso-octane, of value for motor fuels. The Primary Examiner rejected all of the claims, 2, 3 and 4, as being anticipated by the patent to Holm et al., 2,245,038, June 10, 1941.
The claims read as follows:
"2. In...
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