USPTO trademark record

K-BLOCK

Dead mark · Owner Keystone International Holdings Corp. · Classes 9

Mark details

Owner: Keystone International Holdings Corp.
Serial number: 74531343
Registration number: 1964644
Status: CANCELLED - SECTION 8 (dead)
Classes: 9 (Software / electronics / downloadable media)
Filed: 1994-05-31
Registered: 1996-03-26
Goods / services: magnetically actuated signalling apparatus for indicating position of a proximate movable member, namely a shaft of a valve actuator

Register data as of 2026-11-07. Records can trail live filings — check the official USPTO search for the latest status before filing.

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