U.S. federal trademark · Serial No. 79051394 · Reg. No. 3505660
Stones and bricks for lining industrial furnaces, especially fireproof and heat resistant stones and bricks; fireproof masses not made of metal for the manufacturing of fireproof linings, fireproof mortars, fireproof cement and fireproof concrete
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.