Mark Identification

ENVIRO-TECH

Serial Number

73779408

Filing Date

Feb 8, 1989

Registration Date

Oct 3, 1989

Trademark by

SUN DRILLING PRODUCTS

Classification Information

CHEMICAL ADDITIVES FOR OIL AND GAS WELL DRILLING, NAMELY TO STABILIZE SHALE FORMATION, IMPART LUBRICITY TO THE BOREHOLE, AND CONTROL FILTRATION

Chemicals