Application of Carl D. Lunsford

*381HIGH, Judge.

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-Substi-' tuted Phenoxymethyl Oxazolidones.” No claim is allowed.

The sole issue is obviousness under 35 U.S.C. § 103 in view of the following references :

Beasley et al., Chem. Abstracts, Vol. 51, col. 8723 (1957)1

Karrer, “Organic Chemistry” (Else-vier), pp. 434, 445 (1950)

Noller, “Chem. of Organic Compounds,” 2nd Ed., (Saunders), pp. 440-1 (1957)

Fieser et al., “Organic Chemistry,” (Reinhold),…