U.S. federal trademark · Serial No. 85229807 · Reg. No. 4388519
Dipper door retarding device, namely, door jamb of metal and door stop of metal for retarding the swinging movement of a dipper door, for a dipper on the mining front shovel in mining and quarrying domain
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.