HATFIELD, Judge.
This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the decision of the Primary Examiner rejecting all of the claims (Nos. 2, 3, 4, 6 to 12, inclusive, and 14 to 20, inclusive) in appellant's application for a patent for an alleged invention relating to improvements in weighted cements for use in cementing oil or gas wells and a method of cementing such wells with such cements.
At the time...
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