U.S. federal trademark · Serial No. 79224859 · Reg. No. 5630025
Refractory construction materials, not of metal, namely, refractory bricks, blocks, large format shapes, preformed shapes, mortar, ceramic bricks, ceramic shapes and castable mixes for use in furnace applications; refractory construction materials, not of metal and for use in furnace applications; refractory blocks, not of metal for use in furnace applications; refractory walls, refractory bricks and refractory blocks, all not of metal and for use in furnace applications; refractory walls comprising modular interlocking refractory bricks, shapes and blocks, all not of metal and for use in furnace applications; preformed refractory blocks, not of metal for use in glass furnace operations; cast refractory sections, namely, non-metal cast refractory furnace linings of glass furnace walls
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