Mark Identification

X-TEND

Serial Number

73672990

Filing Date

Jul 20, 1987

Registration Date

Mar 28, 1989

Trademark by

HALLIBURTON ENERGY SERVICES INC.

Active Trademark

Classification Information

BLEND OF LONG CHAIN ANIONIC AND SHORT CHAIN NONIONIC POLYMERS FOR USE AS AN ADDITIVE TO WATER BASED DRILLING FLUIDS

Chemicals