U.S. federal trademark · Serial No. 87189905 · Reg. No. 5304897
Refractory blocks, not of metal; Refractory bricks, not of metal; Refractory cement; Refractory concrete; Refractory construction materials, not of metal; Refractory furnace linings, not of metal; Refractory mortars; Refractory shapes, not of metal; Ceramic shapes for use in refractory furnaces; Fired refractory materials, not of metal
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.