11 water well apparatus; namely, check valves, pressure relief valves, gate valves, well seals, torque arresters, water well packing units, water filters, and well bleeder orifices
Trademark Events
Jun 2, 2002
Cancelled Sec. 8 (10-Yr)/Expired Section 9
Apr 25, 1997
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.