USPTO trademark record

LIGNOX

Live registered mark · Owner NL BAROID, INC. · Classes 1

Mark details

Owner: NL BAROID, INC.
Serial number: 73737420
Registration number: 1526337
Status: REGISTERED AND RENEWED
Classes: 1 (Chemicals)
Filed: 1988-06-30
Registered: 1989-02-28
Goods / services: MUD THINNER FOR WATER-BASED DRILLING FLUIDS

Register data as of 2026-11-08. Records can trail live filings — check the official USPTO search for the latest status before filing.

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