Mark Identification

DELTA-X

Serial Number

75737529

Filing Date

Jun 25, 1999

Registration Date

Apr 2, 2002

Trademark by

LUFKIN INDUSTRIES INC.

Classification Information

OIL FIELD PUMPING EQUIPMENT, NAMELY, COMPUTERIZED CONTROL DEVICES FOR ARTIFICIAL LIFT SYSTEMS

Machinery

OIL FIELD PUMPING EQUIPMENT, NAMELY, COMPUTERIZED CONTROL DEVICES, NAMELY, WELL MONITORS, DYNAMOMETERS, AND PUMP OFF CONTROLLERS FOR ARTIFICIAL LIFE SYSTEMS USED TO REMOVE OIL OR GAS FROM AN OIL OR GAS WELL; COMPUTER SOFTWARE USED TO MONITOR FOR USE IN CONNECTION WITH CONTROL DEVICES, NAMELY, WELL MONITORS DYNAMOMETERS, AND PUMP OFF CONTROLLERS USED IN ARTIFICIAL LIFT SYSTEMS USED TO REMOVE OIL OR GAS FROM AN OIL OR GAS WELL

Electrical and Scientific Apparatus