USPTO trademark record

TRI-RING

Dead mark · Owner Murray Lee Heath o/a Heath Electronic Design · Classes 9

Mark details

Owner: Murray Lee Heath o/a Heath Electronic Design
Serial number: 74186000
Registration number: 1728714
Status: CANCELLED - SECTION 8 (dead)
Classes: 9 (Software / electronics / downloadable media)
Filed: 1991-07-15
Registered: 1992-10-27
Goods / services: encoded ring detector; line switch; voice switch; data switch for use in telephone switchboards

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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