Application of John P. Lambooy

MARTIN, Judge.

This is an appeal from a decision of the Board of Appeals of the United States Patent Office which affirmed the examiner’s rejection of the only claim of appellant’s application for a patent on “Isoalloxazine Compound.”

The claim is as follows: 1

1. 6, 7-diethyl-9-(D-l'-ribityl)-iso-alloxazine, having the structural formula:

The references relied on by the examiner and the board are:

Tishler et al. 2,350,376 June 6, 1944

Flexser et al. 2,456,395 Dec. 14, 1948

British patent 628,410 Aug. 29, 1949

As the appealed claim indicates, this application relates to a single organic compound. The…