USPTO trademark record

ZYRON

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: 74234421
Registration number: 1772141
Status: CANCELLED - SECTION 8 (dead)
Classes: 1 (Chemicals)
Filed: 1991-12-31
Registered: 1993-05-18
Goods / services: fluorinated hydrocarbon gas used as a cleaning agent and wafer etching compound for integrated circuit boards

Register data as of 2026-11-09. Records can trail live filings — check the official USPTO search for the latest status before filing.

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