U.S. federal trademark · Serial No. 74691579 · Reg. No. 2028307
silica sand; silica flour; desulphurizing slags, synthetic slags; slag conditioners; pre-cast refractory shapes, namely, dams, weirs, pads, baffles, nozzle rings and well blocks, tundish coatings and liners, [ hop ] * hot * tops and exothermic topping compounds
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.