U.S. federal trademark · Serial No. 76264826 · Reg. No. 30112264
Quartz glass tubes, quartz glass rods, quartz glass blocks, quartz glass crucibles, quartz glass bowls, quartz glass flasks for laboratory equipment and for the manufacture of optical fibers; optical fibers; fiber optic preforms; semifinished quartz glass tubes and quartz glass rods for the manufacture of optical fibers
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.