Who owns the THIRD CHAIR trademark?

The THIRD CHAIR trademark is owned by Watchdog AI, Inc..

What class is the THIRD CHAIR trademark registered in?

The THIRD CHAIR trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for THIRD CHAIR?

The USPTO serial number for THIRD CHAIR is 99286692.

What is the registration number for THIRD CHAIR?

THIRD CHAIR is registered under USPTO registration number 8219185.

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Home Search: THIRD CHAIRTHIRD CHAIR #99286692

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Updated Sep 28, 2026·38 searches this week

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THI

USPTO Trademark Record

REGISTERED

THIRD CHAIR

SN 99286692·Reg 8219185·Filed Jul 16, 2025

Owner Watchdog AI, Inc.

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

THIRD CHAIR (Serial No. 99286692), Registration No. 8219185, is a registered US trademark filed on Jul 16, 2025 by Watchdog AI, Inc.. This trademark covers Class 042 (Scientific, technology & SaaS services).

early section 8: April 21, 2032

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Mark Intelligence

THIRD CHAIR (Reg. #8219185) is a registered US trademark that has been protecting its owner, Watchdog AI, Inc., since 2025. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jul 16, 2025

SERIAL

99286692

REG#

8219185

REGISTERED

Apr 21, 2026

Filing Information

StatusREGISTERED

Filing DateJul 16, 2025

Serial Number99286692

Registration No.8219185

Registration DateApr 21, 2026

Status DateApr 21, 2026

Published for OppositionMar 03, 2026

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: May 29, 2025

First use in commerce: May 29, 2025

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

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Status History

20 events

REGISTERED-PRINCIPAL REGISTER

Apr 21, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Apr 21, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Mar 03, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Mar 03, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Feb 25, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Feb 05, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Feb 03, 2026

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Feb 03, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Feb 03, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

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

Jan 16, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jan 16, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 16, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jan 16, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

NON-FINAL ACTION WRITTEN

Dec 15, 2025

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Dec 15, 2025

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Dec 15, 2025

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Dec 04, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Nov 20, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 16, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Jul 16, 2025

APPLICATION FILING RECEIPT MAILED

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