U.S. federal trademark · Serial No. 88441179 · Reg. No. 6828053
Articles made from fused silica, fused quartz or glass, namely, ingots, tubes, rods, discs, plates and rings all for general industrial and further manufacturing use containing diamond; Partly worked glass, namely, ingots, tubes, rods, discs, plates and rings all for general industrial and further manufacturing use and all containing diamond
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.