U.S. federal trademark · Serial No. 88801177 · Reg. No. 6286061
Metal machine parts used in well drilling and production operations, namely, well heads, bull plugs, flanges, casing adapters, casing couplings, polish rod clamps, stuffing boxes, blow out preventers, rod rotators, lubricator boxes, crosses, tees, plug valves, check valves, cone packing, belled nipples and ball valves
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.