U.S. federal trademark · Serial No. 75340730 · Reg. No. 39707343
quartz glass [ and translucent fused quartz glass ], semifinished quartz tubes, rods, [ plates and blocks ] for use in the industrial arts, semifinished quartz products for the manufacture of optical fibers, namely, dielectric rods, jacketing tubes, sleeving tubes, overcladding tubes, substrate tubes [, handles and dummy rods ]
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.