U.S. federal trademark · Serial No. 79133659 · Reg. No. 4473212
Stones, in particular fireproof and heat-resistant stones, fireproof building refractory masses for manufacturing fireproof linings, fireproof mortars, fireproof cements and fireproof concretes
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.