Application of Honnig

JACKSON, Judge.

This appeal is from a decision of the Board of Appeals of the United States Patent Office affirming that of the Primary Examiner finally rejecting 3 claims of an application by appellant, serial No. 624,827, filed October 26, 1945 for a patent on “Improvements in Molded Heat Insulation and Method of Manufacture.” Thirteen method claims were allowed.

The rejected claims read as follows:

“8. In manufacturing insulation blocks comprising basic magnesium carbonate reinforced with fibers, the steps comprising, charging a filter mold with an aqueous slurry comprising fibers and normal…