Application of Weiskopf

O’CONNELL, Judge.

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the final rejection by the Primary Examiner of claims 5, 6, and 8 of appellant’s application for a patent on new and useful improvements relating to a method of preparing histologic tissues for microscopic examination. No claim was considered allowable either by the examiner or the board, in view of the disclosure of appellant’s prior patent, the patent to Weiskopf, No. 2,393,580, granted January 22, 1946.

Claims 5 and 6 are representative:

“5. In the preparation of tissue…