U.S. federal trademark · Serial No. 85411224 · Reg. No. 4560645
Wellheads, namely, casing heads, casing spools, tubing heads, tree caps, chokes, and valves; gate valves; and large bore valves used in oil well fracturing operations
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.