USPTO trademark record

LEAK LOCK

Live registered mark · Owner STEWART INDUSTRIES INCORPORATED · Classes 1

Mark details

Owner: STEWART INDUSTRIES INCORPORATED
Serial number: 72017130
Registration number: 0655152
Status: REGISTERED AND RENEWED
Classes: 1 (Chemicals)
Filed: 1956-10-08
Registered: 1957-12-03
Goods / services: PLASTIC BASE PIPE JOINT SEALING COMPOUND HAVING INCIDENTAL PROPERTIES AS A PROTECTIVE COATING

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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