Who owns the DUOFIRE trademark?

The DUOFIRE trademark is owned by Duo Chen.

What class is the DUOFIRE trademark registered in?

The DUOFIRE trademark is registered in Class 016 (Paper goods, books & stationery).

What is the serial number for DUOFIRE?

The USPTO serial number for DUOFIRE is 88532513.

What is the registration number for DUOFIRE?

DUOFIRE is registered under USPTO registration number 6051526.

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Updated Nov 8, 2026·39 searches this week

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Section 8 grace period ends

November 12, 2026

3 days remaining

DUO

DUOFIRE

REGISTERED

Serial: 88532513
Reg: 6051526
Filed: Jul 24, 2019
Owner: Duo Chen

Paper and cardboard; printed matter; bookbinding material; photographs; stationery and office requisites, except furniture; adhesives for stationery or household purposes; drawing materials and materials for artists; paintbrushes; instructional and teaching materials; plastic sheets, films and bags for wrapping and packaging; printers' type, printing blocks.

What to file next

Section 8 declaration of continued use

When: Due between the fifth and sixth anniversary of registration.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed Section 8 cancels the registration, and there is no revival route for it.

How the Section 8 deadline works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.

Full Goods & Services

Class 016Paper goods, books & stationery

US codes: 002, 005, 022, 023, 029, 037, 038, 050

First use anywhere: Apr 25, 2018

First use in commerce: May 09, 2018

This description is as filed with the USPTO and defines the scope of trademark protection.

Status History

28 events

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

May 12, 2025

Code REM1

AMENDMENT CORRESPONDENCE ENTERED

Feb 28, 2023

Code CRAF

REGISTERED-PRINCIPAL REGISTER

May 12, 2020

Code R.PR

TEAS CHANGE OF OWNER ADDRESS RECEIVED

May 12, 2020

Code COAR

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

May 12, 2020

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 12, 2020

Code ARAA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 12, 2020

Code TCCA

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

May 12, 2020

Code CHAN

PUBLISHED FOR OPPOSITION

Feb 25, 2020

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 25, 2020

Code NPUB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Feb 05, 2020

Code NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 22, 2020

Code CNSA

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jan 17, 2020

Code CRFA

TEAS/EMAIL CORRESPONDENCE ENTERED

Jan 17, 2020

Code TEME

ASSIGNED TO LIE

Jan 16, 2020

Code ALIE

TEAS RESPONSE TO SUSPENSION INQUIRY RECEIVED

Jan 01, 2020

Code ERSI

SUSPENSION LETTER WRITTEN

Oct 09, 2019

Code CNSL

LETTER OF SUSPENSION E-MAILED

Oct 09, 2019

Code GNSL

NOTIFICATION OF LETTER OF SUSPENSION E-MAILED

Oct 09, 2019

Code GNS3

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 08, 2019

Code TEME

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 07, 2019

Code TROA

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 07, 2019

Code CRFA

ASSIGNED TO EXAMINER

Sep 23, 2019

Code DOCK

NON-FINAL ACTION WRITTEN

Sep 23, 2019

Code CNRT

NON-FINAL ACTION E-MAILED

Sep 23, 2019

Code GNRT

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Sep 23, 2019

Code GNRN

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Aug 01, 2019

Code NWOS

NEW APPLICATION ENTERED

Jul 29, 2019

Code NWAP

DUOFIRE

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