Application of Limestone Products Corporation of America

ALMOND, Judge.

This is an appeal by Limestone Products Corporation of America from an adverse decision of the Trademark Trial and Appeal Board, 131 USPQ 393, on appellant’s application to register on the Principal Register “CALCITE CRYSTALS” as a trademark for “Ground Limestone for use as a Poultry Feed Ingredient.”

The board, in sustaining the examiner, denied registration on the ground that the alleged mark is a common descriptive name for appellant’s goods.

Appellant, relying on Section 2(f) of the Trade-Mark Act of 1946, alleges that the mark has become, through long and extensive use,…