USPTO trademark record

SIPORAX

Dead mark · Owner Schott Glaswerke · Classes 21

Mark details

Owner: Schott Glaswerke
Serial number: 74169090
Registration number: 1691604
Status: CANCELLED - SECTION 8 (dead)
Classes: 21 (Household goods)
Filed: 1991-05-22
Registered: 1992-06-09
Goods / services: open-pored sintered glass and open-pored sintered glass ceramic materials for use as substrates for microorganisms, as biological filters in fishtanks, and for biological purification of drinking wat…

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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