U.S. federal trademark · Serial No. 77476002 · Reg. No. TMA758235
Downhole drilling machine parts, namely, drill bits, reaming shells, locking couplings, adapter couplings, drill rods, outer tubes, stabilized outer tubes, casings, adapter subs and core barrels
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.