U.S. federal trademark · Serial No. 73212278 · Reg. No. 1191900
a Granular Chemical Comprised of Processed Nut Hulls Having a Use in Admixture with Well Drilling Fluids for Preventing Loss of Such Fluids into Porous Subterranean Earth Formations
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.