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Serial Number

88029629

Owner

Internet Security Research Group

Attorney

Benjamin A. Costa

First Use Date

Jul 7, 2016

Filing Date

Jul 9, 2018

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LET'S ENCRYPT Trademark

Serial Number: 88029629 • Registration: 5689946

LET'S ENCRYPT is a trademark filed by Internet Security Research Group on July 9, 2018. The trademark is classified under Class 42 (Computer & Scientific), Class 45 (Legal & Security Services). The application is currently registered and active.

Trademark Classes

Class 42 - Computer & Scientific

Scientific and technological services; industrial analysis and research services

Class 45 - Legal & Security Services

Legal services; security services for the protection of property and individuals

Owner Contact Info

Internet Security Research Group (7 trademarks)

PMB 77519
San Francisco, CA 94104

Entity Type: 03

Legal Representation

Attorney of Record

Benjamin A. Costa

612 trademarks filed View all →

Correspondence Address

Benjamin A. Costa Ridder, Costa & Johnstone LLP

440 N Barranca Ave

#7550

Covina, CA 91723

United States

Trademark Details

Filing Date

July 9, 2018

Registration Date

March 5, 2019

First Use Anywhere

July 7, 2016

First Use in Commerce

July 7, 2016

Published for Opposition

December 18, 2018

Goods & Services

Managed public key infrastructure services, namely, authentication, issuance, and validation of digital keys and digital certificates; Issuance of digital keys and digital certificates for authentication; Computer security services, namely, providing digital keys and digital certificates that authenticate the identity of websites and secure information sent using Secure Socket Layer (SSL) and Transport Layer Security (TLS) technologies

Development, integration, and operation of computer systems to support issuance and management of digital keys and digital certificates by and to third parties

Filing History

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 22, 2025 TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 22, 2025 ARAA

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Aug 22, 2025 REAP

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

Dec 12, 2024 NA85

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

Dec 12, 2024 C15A

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 15, 2024 APRE

TEAS SECTION 8 & 15 RECEIVED

Apr 17, 2024 E815

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

Mar 5, 2024 REM1

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 15, 2022 TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 15, 2022 ARAA

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Dec 15, 2022 REAP

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Mar 8, 2022 CHAN

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Mar 8, 2022 TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Mar 8, 2022 ARAA

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Mar 8, 2022 REAP

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Mar 8, 2022 COAR

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 25, 2021 TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 25, 2021 ARAA

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Jun 25, 2021 REAP

REGISTERED-PRINCIPAL REGISTER

Mar 5, 2019 R.PR

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Dec 18, 2018 NPUB

PUBLISHED FOR OPPOSITION

Dec 18, 2018 PUBO

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Nov 28, 2018 NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 5, 2018 CNSA

ASSIGNED TO EXAMINER

Oct 27, 2018 DOCK

NOTICE OF DESIGN SEARCH CODE E-MAILED

Jul 14, 2018 MDSM

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 13, 2018 NWOS

NEW APPLICATION ENTERED

Jul 12, 2018 NWAP

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