NWPC, LLC Trademarks
ARROW-LOCK

ARROW-LOCK

Filed: June 28, 1990
plastic sheets used to line or coat steel or concrete pipes, structures, tanks, vats, walls, floors, and the like
Owned by: NWPC, LLC
Serial Number: 74073691

T-HAB

T-HAB

Filed: October 17, 1997
repair of sewer pipes and tunnels through installation of a protective PVC lining
Owned by: NWPC, LLC
Serial Number: 75375344

T-LOCK

T-LOCK

Filed: November 20, 2003
ACID PROOF MATERIAL COMPOSED OF POLYMER VINYL RESINS COMBINED WITH INERT PIGMENTS AND PLASTICIZERS USED FOR LINING OR COATING…
Owned by: NWPC, LLC
Serial Number: 76563154