Court of Customs and Patent Appeals May 11, 1978, Appeal No. 78-508 (In re Merchant)

MARKEY, Chief Judge.

Appeal from the decision of the Patent and Trademark Office (PTO) Board of Appeals (board) sustaining rejections of claims 1-6 under 35 U.S.C. § 103 of appellant’s application serial No. 354,715, filed April 26, 1973, for “Purification of Gaseous Hydrogen Chloride.”1 We reverse.