USPTO trademark record

SIFI

Live registered mark · Owner SIEMENS AKTIENGESELLSCHAFT · Classes 9

Mark details

Owner: SIEMENS AKTIENGESELLSCHAFT
Serial number: 73562388
Registration number: 1402960
Status: REGISTERED AND RENEWED
Classes: 9 (Software / electronics / downloadable media)
Filed: 1985-10-09
Registered: 1986-07-29
Goods / services: RADIO INTERFERENCE SUPPRESSION 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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