U.S. federal trademark · Serial No. 75926728
quartz sand (also dyed), quartz powder (for building purposes), kaolin fireclay, hard substances as additional substances for building materials, colored sands (also silicatic or bound with synthetic resin and/or silanized
kaolin, talcum, feldspar (as raw-material for industrial purposes), quartz powder (not for building purposes);
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.