U.S. federal trademark · Serial No. 85427279 · Reg. No. 4481557
Polycrystalline diamond compact drill bits; roller cone drill bits, cutters for polycrystalline diamond compact drill bits; cutters for roller cone drill bits; cutters for downhole drilling and boring tools
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.