USPTO trademark record

DUO-FLOW

Dead mark · Owner Harshaw Chemical Company, The · Classes 11

Mark details

Owner: Harshaw Chemical Company, The
Serial number: 73250791
Registration number: 1164551
Status: CANCELLED - SECTION 8 (dead)
Classes: 11 (Appliances / lighting)
Filed: 1980-02-19
Registered: 1981-08-11
Goods / services: Horizontal Plate Filters

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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