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IN RE BREWSTER

No. 1950.

20 F.2d 284 (1927)

In re BREWSTER.

Court of Appeals of District of Columbia.

Decided May 26, 1927.

Attorney(s) appearing for the Case

C. W. Fairbank, of New York City, for appellant.

T. A. Hostetler, of Washington, D. C., for Commissioner of Patents.

Before MARTIN, Chief Justice, and ROBB and VAN ORSDEL, Associate Justices.

ROBB, Associate Justice.

Appeal from a decision of the Patent Office, refusing to allow claims Nos. 1 to 14, inclusive, covering a method and apparatus for practicing it.

The method involved relates to the obtaining of strong from weak solutions of acetic acid, and consists in flowing the acetic acid solution, to be concentrated, counter current to ether or other solvent, for acetic acid, which is substantially immiscible with water, removing the ether-acetic...

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