WORLEY, Judge.
Philip Zalkind appeals here from the decision of the Board of Appeals of the United States Patent Office affirming the decision of the Primary Examiner in finally rejecting claim 20 in appellant's application for a patent for "Expanded Sheet and Method for Making Same." In rejecting the claim, the tribunals of the Patent Office held the limitations disclosed therein to be unpatentable over the prior art, and also as being ambiguous and inaccurate. Five...
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