USPTO trademark record

DOUBC

Live registered mark · Owner Yu Longyou · Classes 9

Mark details

Owner: Yu Longyou
Serial number: 90498859
Registration number: 6583071
Status: REGISTERED
Classes: 9 (Software / electronics / downloadable media)
Filed: 2021-01-29
Registered: 2021-12-07
Goods / services: Headphones; Cases for mobile phones; Data cables; Earphones; Game headphones; Mileage recorders for vehicles; Power adapters; Power supplies; Protective films adapted for smartphones; Smart watches; …

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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