U.S. federal trademark · Serial No. 74020541 · Reg. No. 1654692
solid substrates, such as a polymer treated sponge, resin beads or treated coal or carbon for the treatment of water in the gold mining, electroplating, pollution control, muncipal sewage fields and other industrial applications
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.