USPTO trademark record

TOP-SPRING

Dead mark · Owner CHUNTAO DU · Classes 9

Mark details

Owner: CHUNTAO DU
Serial number: 86791412
Registration number: 4972942
Status: CANCELLED - SECTION 8 (dead)
Classes: 9 (Software / electronics / downloadable media)
Filed: 2015-10-19
Registered: 2016-06-07
Goods / services: Alarm sensors; Alarms for the detection of inflammable gases; Anti-intrusion alarms; Burglar alarms; Electronic door alarms; Electronic exit alarms; Fire alarms; Gas alarms; Security and fire alarms;…

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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