Mark Identification

QDF

Serial Number

76281436

Filing Date

Jun 28, 2001

Registration Date

Dec 24, 2002

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