1 GROUND LIMESTONE AS A DRILLING FLUID OR WORKOVER FLUID ADDITIVE TO PROVIDE ADDITIONAL WEIGHT FOR USE IN OIL, GAS, WATER, DISPOSAL AND INJECTION WELLS
Trademark Events
Nov 7, 1994
Expired Sec. 9
Sep 10, 1979
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.