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APPLICATION OF RIAT

Patent Appeal No. 7010.

327 F.2d 685 (1964)

Application of Henri RIAT, Rene Demontmollin and Eugen Johann Koller.

United States Court of Customs and Patent Appeals.

February 20, 1964.

Attorney(s) appearing for the Case

Wenderoth, Lind & Ponack, I. M. Aisenberg, Washington, D. C. (A. Ponack, Washington, D. C., of counsel), for appellants.

Clarence W. Moore, Washington, D. C. (Joseph Schimmel, Washington, D. C., of counsel), for the Commissioner of Patents.

Before WORLEY, Chief Judge, and RICH, MARTIN, SMITH and ALMOND, Judges.

WORLEY, Chief Judge.

Riat et al. appeal1 from an affirmance by the Board of Appeals of the examiner's rejection of claims 10 and 19 as being unduly broad and indefinite, and as unpatentable over the prior art. One claim has been allowed.

The claimed invention relates to azo dyestuffs having at least two acidic functional groups imparting water-solubility, at least one of which is a sulfonic acid group. The dyes are characterized...

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