OPSIS
Mark Identification

OPSIS

Serial Number

86942515

Filing Date

Mar 16, 2016

Registration Date

Dec 10, 2019

Trademark by

HALLIBURTON ENERGY SERVICES INC.

Active Trademark

Classification Information

Resonating quartz crystal solenoid gauges used underground in an oil well to control oil well downhole equipment by measuring pressure and temperature

Electrical and Scientific Apparatus