USPTO trademark record

KASTONE

Dead mark · Owner E. I. DU PONT DE NEMOURS AND COMPANY · Classes 1

Mark details

Owner: E. I. DU PONT DE NEMOURS AND COMPANY
Serial number: 72379902
Registration number: 0925757
Status: EXPIRED (dead)
Classes: 1 (Chemicals)
Filed: 1970-12-31
Registered: 1971-12-21
Goods / services: PEROXYGEN COMPOUND USED IN THE DETOXIFICATION OF CYANIDE BEARING WASTES

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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