Mark Identification

HYDRIL

Serial Number

71662540

Filing Date

Mar 12, 1954

Registration Date

Dec 27, 1955

Trademark by

HYDRIL COMPANY

Active Trademark

Classification Information

PULSATION DAMPENERS, [ VALVES OF ALL KINDS AND PIPE FITTINGS, ] BLOWOUT PREVENTERS [, ACCUMULATORS, CASING JOINTS, TUBING JOINTS, DRILL STEM JOINTS, PIPE CONNECTORS, GAS SEPARATORS, FLUSH JOINT DRILL PIPES AND VALVES COMPRISING OIL FIELD EQUIPMENT ]

Firearms