MODIFIED
Filed: December 10, 1973
METAL COUPLINGS FOR JOINING THREADED TUBULAR COMPONENTS SUCH AS TUBING AND CASING USED IN OIL WELLS AND THE LIKE
Owned by: GRANT TFW, INC.
Serial Number: 73008551
TFW
Filed: September 12, 1988
METAL DRILL PIPE AND TOOL JOINTS
Owned by: GRANT TFW, INC.
Serial Number: 73751531
XTRA WEIGHT
Filed: January 15, 1991
parts for oil drilling machines; namely, drill pipes
Owned by: GRANT TFW, INC.
Serial Number: 74130729
XIT UPSET
Filed: September 26, 1991
parts for drilling machines; namely, drill pipes
Owned by: GRANT TFW, INC.
Serial Number: 74207153
TC-II
Filed: August 31, 1993
metal couplings for joining threaded tubular components such as tubing and casing used in oil wells and the like
Owned by: GRANT TFW, INC.
Serial Number: 74431442
AB
Filed: October 15, 1993
metal couplings for joining threaded tubular components such as tubing and casing used in oil wells and the like
Owned by: GRANT TFW, INC.
Serial Number: 74448476
GRANT TFW
Filed: October 15, 1993
providing threading services for others on tubular goods and couplings used in the oil and gas industry
Owned by: GRANT TFW, INC.
Serial Number: 74448477
SPIRALINE
Filed: July 5, 1995
threaded metal tubular components, namely well casing
Owned by: GRANT TFW, INC.
Serial Number: 74697379
