Mark Identification

FB.1

Serial Number

73253005

Filing Date

Mar 7, 1980

Registration Date

May 11, 1982

Trademark by

CHROMALLOY AMERICAN CORPORATION

Classification Information

Drilling Fluid Additive Comprising a Silicone-Based Defoamer for Use in Drilling Fluids During Workover and Completion Operations for Oil and Gas Well Drilling

Chemicals