U.S. federal trademark · Serial No. 88315349 · Reg. No. 5916749
A blasthole cap, namely, a non-metal cap that fits into a blast hole and extends over the blast hole's edges to prevent debris from falling into the blasthole and to provide a conduit for the delivery of explosives into the blast hole
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.