REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
03/14/2026
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Official data from USPTO
DUO
Did you know this trademark is already registered in United States?
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Active USPTO registrationType: CombinedOffice: US
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
24
Latest update
03/15/2026
Classification
Registered
Trademark type
Combined
Nice classes
42, 45
Filing date
08/02/2016
Registration date
03/14/2017
Expiration date
-
Recommended action
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Next step
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Complete case details
Structured fields from the responsible authority and the official record.
Status date
07/25/2023
Last transaction
03/15/2026
Responsible office
United States Patent and Trademark Office
Status code
702
Official register
Principal Register
First use anywhere
2013-07-00
First use in commerce
2013-07-00
Drawing code
3
Owner type
03
Owner location
SAN JOSE, CA, US
Examiner
NELSON, EDWARD
Law office
L60
Current location
TMEG LAW OFFICE 106
Mark description
The mark consists of the wording "DUO" in stylized lettering.
Holders and representatives
Holders
CISCO TECHNOLOGY, INC.
DUO SECURITY LLC
Duo Security, Inc.
Representatives
Mark A. Jansen FENWICK & WEST LLP
Technical classification
Nice Classes
Class 42Class 45
Vienna Codes
No Vienna codes available.
Goods and services
Class 42
Software as a service (SAAS) serviceshosting software for use by others for data security purposes by providing authentication
Class 45
Computer security services in the nature of providing user authentication for data security
Publications
History of USPTO decisions and trademark events.
24 publications found
NA85
NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
07/25/2023
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
07/25/2023
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
07/24/2023
E815
TEAS SECTION 8 & 15 RECEIVED
01/27/2023
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
01/18/2023
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
07/27/2022
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
07/13/2022
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/10/2022
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
05/10/2022
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
05/10/2022
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
05/10/2022
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
03/14/2022
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
09/27/2019
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
09/27/2019
R.PR
REGISTERED-PRINCIPAL REGISTER
03/14/2017
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
12/27/2016
PUBO
PUBLISHED FOR OPPOSITION
12/27/2016
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
12/07/2016
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
11/15/2016
DOCK
ASSIGNED TO EXAMINER
11/14/2016
MDSC
NOTICE OF DESIGN SEARCH CODE E-MAILED
08/06/2016
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
08/05/2016
NWAP
NEW APPLICATION ENTERED
08/05/2016
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