Who owns the CORNERSTONE trademark?

The CORNERSTONE trademark is owned by CORNERSTONE GOVERNMENT AFFAIRS, INC..

What is the serial number for CORNERSTONE?

The USPTO serial number for CORNERSTONE is 98326400.

What is the registration number for CORNERSTONE?

CORNERSTONE is registered under USPTO registration number 8223892.

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Home Search: CORNERSTONECORNERSTONE #98326400

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Updated Oct 28, 2026·11 searches this week

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COR

USPTO Trademark Record

REGISTERED

CORNERSTONE

Q: What class is the CORNERSTONE trademark registered in?

The CORNERSTONE trademark is registered in Class 035 (Advertising, business management & retail services), Class 045 (Legal, security & personal social services).

SN 98326400·Reg 8223892·Filed Dec 21, 2023

Owner CORNERSTONE GOVERNMENT AFFAIRS, INC.

Advertising; business management, organization and administration; office functions.; Legal services; security services for the physical protection of tangible property and individuals; dating services, online social networking services; funerary services; babysitting.

CORNERSTONE (Serial No. 98326400), Registration No. 8223892, is a registered US trademark filed on Dec 21, 2023 by CORNERSTONE GOVERNMENT AFFAIRS, INC.. This trademark covers Class 035 (Advertising, business management & retail services), Class 045 (Legal, security & personal social services).

early section 8: April 21, 2032

Mark Intelligence

CORNERSTONE (Reg. #8223892) is a registered US trademark that has been protecting its owner, CORNERSTONE GOVERNMENT AFFAIRS, INC., since 2023. The mark covers Class 035 (Advertising, business management & retail services) and Class 045 (Legal, security & personal social services) respectively. Goods and services include Advertising; business management, organization and administration; office functions.; Legal services; security services .... The mark faced 1 opposition proceeding during prosecution.

FILED

Dec 21, 2023

SERIAL

98326400

REG#

8223892

REGISTERED

Apr 21, 2026

Filing Information

StatusREGISTERED

Filing DateDec 21, 2023

Serial Number98326400

Registration No.8223892

Registration DateApr 21, 2026

Status DateApr 21, 2026

Published for OppositionSep 24, 2024

Filing Basis & Declarations

Standard Characters ClaimedUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Sep 05, 2025

First use in commerce: Sep 05, 2025

Advertising; business management, organization and administration; office functions.

Class 045Legal, security & personal social services

US codes: 100, 101

First use anywhere: Sep 05, 2025

First use in commerce: Sep 05, 2025

Legal services; security services for the physical protection of tangible property and individuals; dating services, online social networking services; funerary services; babysitting.

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

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Status History

27 events

REGISTERED-PRINCIPAL REGISTER

Apr 21, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Apr 21, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Mar 31, 2026

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Mar 31, 2026

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Mar 26, 2026

CASE ASSIGNED TO INTENT TO USE PARALEGAL

STATEMENT OF USE PROCESSING COMPLETE

Mar 26, 2026

STATEMENT OF USE PROCESSING COMPLETE

TEAS STATEMENT OF USE RECEIVED

Sep 23, 2025

TEAS STATEMENT OF USE RECEIVED

USE AMENDMENT FILED

Sep 23, 2025

USE AMENDMENT FILED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

May 13, 2025

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

POST PUBLICATION AMENDMENT - ENTERED

Apr 30, 2025

POST PUBLICATION AMENDMENT - ENTERED

ASSIGNED TO PETITION STAFF

Apr 28, 2025

ASSIGNED TO PETITION STAFF

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

Apr 04, 2025

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

TEAS POST PUBLICATION AMENDMENT RECEIVED

Mar 20, 2025

TEAS POST PUBLICATION AMENDMENT RECEIVED

EXTENSION OF TIME TO OPPOSE RECEIVED

Oct 21, 2024

EXTENSION OF TIME TO OPPOSE RECEIVED

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Sep 24, 2024

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

PUBLISHED FOR OPPOSITION

Sep 24, 2024

PUBLISHED FOR OPPOSITION

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Sep 04, 2024

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Aug 22, 2024

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Aug 21, 2024

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Aug 21, 2024

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Aug 21, 2024

TEAS/EMAIL CORRESPONDENCE ENTERED

ASSIGNED TO EXAMINER

Jul 23, 2024

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Jul 23, 2024

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Jul 23, 2024

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jul 23, 2024

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Apr 03, 2024

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Dec 21, 2023

NEW APPLICATION ENTERED

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