U.S. federal trademark · Serial No. 86756785
Industrial minerals, namely, alumina, amorphous silica, attapulgite, barium sulphate, barytes, bentontite, borates, calcium silicate, calcium carbonate, calcium sulphate, calcium oxide, carbon black, ceramic powders, chromium corundum, cordierite, diatomite, diatomacious earth, magnesium oxide, montmorillonite, perlite, ferriferous sandstone, ferrosilicon, magnesium silicate, crystalline silica (sand), sialon, silicon carbide, sillimanite, smectite clay, strontium carbonate, talc, vermiculite, and zirconia; chemical compositions made from attapulgite, barium sulphate, barytes, bentontite, borates, calcium silicate, carbon black, chromium corundum, cordierite, diatomite, diatomaceous earth, magnesium oxide, montmorillonite, perlite, ferriferous sandstone, fly ash, sialon, silicon carbide, sillimanite, smectite clay, strontium carbonate, talc, vermiculite, zirconia or blends thereof for use as additives to cement
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.