Who owns the CORNERSTONE trademark?

The CORNERSTONE trademark is owned by Reef Capital Partners LLC.

What class is the CORNERSTONE trademark registered in?

The CORNERSTONE trademark is registered in Class 041 (Education & entertainment services).

What is the serial number for CORNERSTONE?

The USPTO serial number for CORNERSTONE is 99368105.

What is the registration number for CORNERSTONE?

CORNERSTONE is registered under USPTO registration number 8398251.

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Home Search: CORNERSTONECORNERSTONE #99368105

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Updated Oct 7, 2026·20 searches this week

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COR

USPTO Trademark Record

REGISTERED

CORNERSTONE

SN 99368105·Reg 8398251·Filed Sep 01, 2025

Owner Reef Capital Partners LLC

Education; providing of training; entertainment; sporting and cultural activities.

CORNERSTONE (Serial No. 99368105), Registration No. 8398251, is a registered US trademark filed on Sep 01, 2025 by Reef Capital Partners LLC. This trademark covers Class 041 (Education & entertainment services).

early section 8: August 18, 2032

Mark Intelligence

CORNERSTONE (Reg. #8398251) is a registered US trademark that has been protecting its owner, Reef Capital Partners LLC, since 2025. The mark covers Class 041 (Education & entertainment services). Goods and services include Education; providing of training; entertainment; sporting and cultural activities.. The mark faced 1 opposition proceeding during prosecution.

FILED

Sep 01, 2025

SERIAL

99368105

REG#

8398251

REGISTERED

Aug 18, 2026

Filing Information

StatusREGISTERED

Filing DateSep 01, 2025

Serial Number99368105

Registration No.8398251

Registration DateAug 18, 2026

Status DateAug 18, 2026

Published for OppositionJun 30, 2026

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Dec 31, 2006

First use in commerce: Dec 31, 2006

Education; providing of training; entertainment; sporting and cultural activities.

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

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Status History

33 events

REGISTERED-PRINCIPAL REGISTER

Aug 18, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Aug 18, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Jun 30, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jun 30, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jun 24, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jun 03, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS REQUEST FOR RECONSIDERATION RECEIVED

May 27, 2026

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

May 27, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

May 27, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

ACTION REQ FOR RECON DENIED NO APPEAL FILED COUNTED NOT MAILED

May 11, 2026

ACTION REQ FOR RECON DENIED NO APPEAL FILED COUNTED NOT MAILED

ACTION FOR REQ FOR RECON DENIED NO APPEAL FILED E-MAILED

May 11, 2026

ACTION FOR REQ FOR RECON DENIED NO APPEAL FILED E-MAILED

NOTIFICATION FOR REQ FOR RECON DENIED NO APPEAL FILED

May 11, 2026

NOTIFICATION FOR REQ FOR RECON DENIED NO APPEAL FILED

FINAL REFUSAL WRITTEN

Apr 23, 2026

FINAL REFUSAL WRITTEN

FINAL REFUSAL E-MAILED

Apr 23, 2026

FINAL REFUSAL E-MAILED

NOTIFICATION OF FINAL REFUSAL EMAILED

Apr 23, 2026

NOTIFICATION OF FINAL REFUSAL EMAILED

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Apr 23, 2026

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 23, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 23, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Apr 23, 2026

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 23, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 23, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Apr 06, 2026

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 06, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 06, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

Dec 20, 2025

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

Dec 20, 2025

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

ASSIGNED TO EXAMINER

Oct 09, 2025

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Oct 09, 2025

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Oct 09, 2025

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 09, 2025

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NEW APPLICATION ENTERED

Sep 01, 2025

NEW APPLICATION ENTERED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Sep 01, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

APPLICATION FILING RECEIPT MAILED

Sep 01, 2025

APPLICATION FILING RECEIPT MAILED

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