TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
07/02/2026
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Official data from USPTO
MERSANA
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Active USPTO registrationType: WordOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
34
Latest update
07/03/2026
Trademark type
Word
Nice classes
5
Filing date
03/06/2019
Registration date
05/25/2021
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
05/25/2021
Last transaction
07/03/2026
Responsible office
United States Patent and Trademark Office
Status code
700
Official register
Principal Register
Filing basis
Intent to use
First use anywhere
03/31/2021
First use in commerce
03/31/2021
Drawing code
4
Owner type
03
Owner location
Cambridge, MA, US
Examiner
KEATING, SHANNON B
Law office
N80
Current location
PUBLICATION AND ISSUE SECTION
Holders and representatives
Holders
Mersana Therapeutics, Inc.
Representatives
Maury M. Tepper, III Tepper & Eyster, PLLC
Technical classification
Nice Classes
Class 5
Vienna Codes
No Vienna codes available.
Goods and services
Class 5
Pharmaceutical preparations for the treatment of cancer
Publications
History of USPTO decisions and trademark events.
34 publications found
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
07/02/2026
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
07/02/2026
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
07/02/2026
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
07/02/2026
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
05/25/2026
R.PR
REGISTERED-PRINCIPAL REGISTER
05/25/2021
SUNA
NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED
04/22/2021
CNPR
ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED
04/21/2021
SUPC
STATEMENT OF USE PROCESSING COMPLETE
04/21/2021
IUAF
USE AMENDMENT FILED
04/16/2021
EISU
TEAS STATEMENT OF USE RECEIVED
04/16/2021
EXRA
NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
02/16/2021
EX3G
SOU EXTENSION 3 GRANTED
02/12/2021
EXT3
SOU EXTENSION 3 FILED
02/12/2021
EEXT
SOU TEAS EXTENSION RECEIVED
02/12/2021
EXRA
NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
04/28/2020
EX2G
SOU EXTENSION 2 GRANTED
04/27/2020
AITU
CASE ASSIGNED TO INTENT TO USE PARALEGAL
04/27/2020
EXT2
SOU EXTENSION 2 FILED
04/17/2020
EEXT
SOU TEAS EXTENSION RECEIVED
04/17/2020
EXRA
NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
02/07/2020
EX1G
SOU EXTENSION 1 GRANTED
02/05/2020
EXT1
SOU EXTENSION 1 FILED
02/05/2020
EEXT
SOU TEAS EXTENSION RECEIVED
02/05/2020
DOCK
ASSIGNED TO EXAMINER
10/22/2019
NOAM
NOA E-MAILED - SOU REQUIRED FROM APPLICANT
08/20/2019
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
06/25/2019
PUBO
PUBLISHED FOR OPPOSITION
06/25/2019
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
06/05/2019
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
05/16/2019
DOCK
ASSIGNED TO EXAMINER
05/15/2019
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
03/23/2019
NWAP
NEW APPLICATION ENTERED
03/09/2019
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