This appeal is from the decision of the Patent Office Board of Appeals affirming the examiner's rejection of claims 4 and 5 in application serial No. 821,358, filed June 19, 1959, for "Halo-Substituted Phenoxymethyl Oxazolidones." No claim is allowed.
The sole issue is obviousness under 35 U.S.C. § 103 in view of the following references:
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