WHI
Mark Identification

WHI

Serial Number

76281433

Filing Date

Jun 28, 2001

Registration Date

Aug 19, 2003

Trademark by

DUHN OIL TOOL INC.

Classification Information

WELLHEADS; DUAL WELLHEADS; ELECTRIC FEEDTHRU WELLHEADS; WELLHEAD EQUIPMENT, NAMELY CASING HEADS, CASING HANGERS, TUBING HEADS, TUBING HEAD SPOOLS, SECONDARY MECHANICAL SEALS, TUBING HANGERS, WELLHEAD TUBING HEAD ADAPTERS, WELLHEAD FLANGES, WELLHEAD CROSSES AND TEES, TREE CAPS, WELLHEAD AND CHRISTMAS TREE FLUID AND GAS FLOW VALVES, WELLHEAD AND CHRISTMAS TREE FLUID AND GAS FLOW CHOKES, TENSION SET PACKERS, RING SEAL PACKERS, AND ANY COMBINATION OF THE AFOREMENTIONED GOODS SOLD AS A UNIT

Machinery

CUSTOM MANUFACTURE OF OIL FIELD MACHINERY FOR OTHERS

Treatment of Materials