In the Matter of the Application of Reedus R. Estes

LANE, Judge.

This is an appeal from the decision of the Patent Office Board of Appeals which affirmed the rejection of all 14 claims in appellant’s patent application serial No. 212,467 for “Amylose Solutions,” filed July 25, 1962. We reverse the board’s decision.

The invention here is a process of preparing amylose ethers. Claim 1 is illustrative :

1. A process of preparing amylose ethers having a low level of salt contamination, which comprises the steps of providing an aqueous solution of amylose consisting essentially of from about 2 to 30 parts by weight amylose and from about 98 to 70…