TrademarkDir
MAINSTAY
LIVE

Serial Number

99413034

Owner

Mainstay Labs Inc.

Attorney

Stephen Jadie Coates

First Use Date

Aug 1, 2024

Filing Date

Sep 25, 2025

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MAINSTAY Trademark

Serial Number: 99413034 • Registration: 8396577

MAINSTAY is a trademark filed by Mainstay Labs Inc. on September 25, 2025. The trademark is classified under Class 36 (Insurance & Financial). The application is currently registered and active.

Owner Contact Info

Mainstay Labs Inc.

400 Montgomery Street, Suite 950
San Francisco, CA 94104

Entity Type: 03

Trademark Details

Filing Date

September 25, 2025

Registration Date

August 11, 2026

First Use Anywhere

August 1, 2024

First Use in Commerce

August 1, 2024

Published for Opposition

February 24, 2026

Goods & Services

Real estate consultation; Real estate valuations; Real estate investment services; Real estate investment consultancy; Financial due diligence services in the field of real estate; Providing a database of information about residential real estate listings in different neighborhoods and communities

Filing History

NOTICE OF REGISTRATION CONFIRMATION EMAILED
Aug 11, 2026 NRCC
REGISTERED-PRINCIPAL REGISTER
Aug 11, 2026 R.PR
NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED
Jul 20, 2026 SUNA
ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED
Jul 20, 2026 CNPR
STATEMENT OF USE PROCESSING COMPLETE
Jul 18, 2026 SUPC
CASE ASSIGNED TO INTENT TO USE PARALEGAL
Jul 18, 2026 AITU
USE AMENDMENT FILED
May 8, 2026 IUAF
TEAS STATEMENT OF USE RECEIVED
May 8, 2026 EISU
NOA E-MAILED - SOU REQUIRED FROM APPLICANT
Apr 21, 2026 NOAM
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
Feb 24, 2026 NPUB
PUBLISHED FOR OPPOSITION
Feb 24, 2026 PUBO
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
Feb 18, 2026 NONP
APPROVED FOR PUB - PRINCIPAL REGISTER
Feb 2, 2026 CNSA
ASSIGNED TO EXAMINER
Feb 2, 2026 DOCK
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Dec 23, 2025 TCCA
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Dec 23, 2025 CHAN
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Dec 23, 2025 COAR
APPLICATION FILING RECEIPT MAILED
Sep 25, 2025 MAFR
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
Sep 25, 2025 NWOS
NEW APPLICATION ENTERED
Sep 25, 2025 NWAP

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