U.S. federal trademark · Serial No. 87198876 · Reg. No. 5221910
Fused silica as a semi-finished product, namely, ingots, tubes, rods, discs, plates and rings all for general industrial and further manufacturing use; Fusing frit; Glass, unworked or semi-worked, except building glass; Mosaics of glass, not for buildings; Opaline glass; Powdered glass for decoration; Stained glass; Mosaics of glass, not for buildings; Opaline glass
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.