E815
TEAS SECTION 8 & 15 RECEIVED
08/12/2026
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Official data from USPTO
DAY ONE BIOPHARMACEUTICALS
Did you know this trademark is already registered in United States?
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Active USPTO registrationType: WordOffice: United States
Quick snapshot
DAY ONE BIOPHARMACEUTICALS
ST13
US500000088719553Class
42
Filing
88719553
Registration
6196859
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
36
Latest update
08/12/2026
Trademark type
Word
Nice classes
42
Filing date
12/09/2019
Registration date
11/10/2020
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
11/10/2020
Last transaction
08/12/2026
Responsible office
United States Patent and Trademark Office
Status code
700
Official register
Principal Register
Filing basis
Intent to use
First use anywhere
12/09/2019
First use in commerce
12/09/2019
Drawing code
4
Owner type
03
Owner location
Brisbane, CA, US
Examiner
MAI, TINA HSIN
Law office
L80
Current location
TMEG LAW OFFICE 108
Holders and representatives
Holders
DAY ONE BIOPHARMACEUTICALS, INC.
Day One Therapeutics, Inc.
Representatives
Maury M. Tepper, III Tepper & Eyster, PLLC
Technical classification
Nice Classes
Class 42
Vienna Codes
No Vienna codes available.
Goods and services
Class 42
Research and development in the pharmaceutical and biotechnology fields
Publications
History of USPTO decisions and trademark events.
36 publications found
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
07/16/2026
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
07/16/2026
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
07/16/2026
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
11/10/2025
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
01/10/2025
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
01/10/2025
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
01/10/2025
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
01/10/2025
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
01/10/2025
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
09/22/2023
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
09/22/2023
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
09/22/2023
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
09/22/2023
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
09/22/2023
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
02/03/2021
R.PR
REGISTERED-PRINCIPAL REGISTER
11/10/2020
SUNA
NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED
10/03/2020
CNPR
ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED
10/02/2020
SUPC
STATEMENT OF USE PROCESSING COMPLETE
09/21/2020
AITU
CASE ASSIGNED TO INTENT TO USE PARALEGAL
09/21/2020
IUAF
USE AMENDMENT FILED
09/04/2020
EISU
TEAS STATEMENT OF USE RECEIVED
09/04/2020
NOAM
NOA E-MAILED - SOU REQUIRED FROM APPLICANT
06/16/2020
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
04/21/2020
PUBO
PUBLISHED FOR OPPOSITION
04/21/2020
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
04/01/2020
ALIE
ASSIGNED TO LIE
03/18/2020
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
03/11/2020
XAEC
EXAMINER'S AMENDMENT ENTERED
03/11/2020
GNEN
NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED
03/11/2020
GNEA
EXAMINERS AMENDMENT E-MAILED
03/11/2020
CNEA
EXAMINERS AMENDMENT -WRITTEN
03/11/2020
DOCK
ASSIGNED TO EXAMINER
03/10/2020
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
12/12/2019
NWAP
NEW APPLICATION ENTERED
12/12/2019
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