U.S. federal trademark · Serial No. 77467153 · Reg. No. 3921261
oil-based drilling fluid used in servicing of oil and gas wells; oil-based drilling fluid used in exploratory and production drilling for oil and gas wells
Well logging and surveying; geological surveys or research, namely, analysis, testing, and sampling of geological formulations; monitoring the performance of drilling fluid
Maintenance and repair of oil and gas wells; oil and gas well casing; perforating services for oil and gas wells; Perforating services, namely, perforation of oil and gas wells; Consultation in the use of drilling fluids for oil and gas well drilling
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.