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IN RE ESTES

Patent Appeal No. 8249.

420 F.2d 1397 (1970)

In the Matter of the Application of Reedus R. ESTES.

United States Court of Customs and Patent Appeals.

February 19, 1970.

Attorney(s) appearing for the Case

Fred S. Lockwood, Greist, Lockwood, Greenawalt & Dewey, Chicago, Ill., William H. Magidson, attorneys of record, for appellant.

Joseph Schimmel, Washington, D. C., for the Commissioner of Patents; Leroy B. Randall, Jack E. Armore, Washington, D. C., of counsel.

Before RICH, Acting Chief Judge, ALMOND, BALDWIN, LANE, Judges and McMANUS, Chief Judge, Northern District of Iowa, sitting by designation.

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...

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