U.S. federal trademark · Serial No. 77339981 · Reg. No. 632355
Shaftless screws; shafted screws all made of metal
Screw conveyors, screw compactors, classifiers, namely, hydraulic grit settling machines, screw pumps, bar screens; heat exchangers being parts of machines
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.