U.S. federal trademark · Serial No. 74006919 · Reg. No. 1625486
CARBON PIECES OF VARYING SIZE EITHER ALONE OR IN COMBINATION WITH SUBSTANCES TO CHANGE FLOW CHARACTERISTICS AND/OR ELECTRICAL RESISTIVITY FOR USE AS EARTH CONTACT BACKFILL FOR USE IN A WIDE VARIETY OF MARKETS SUCH AS RESIDENTIAL, INDUSTRIAL, GOVERNMENTAL, AND COMMERCIAL
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