LET'S ENCRYPT Trademark

Trademark Overview


On Monday, July 9, 2018, a trademark application was filed for LET'S ENCRYPT with the United States Patent and Trademark Office. The USPTO has given the LET'S ENCRYPT trademark a serial number of 88029629. The federal status of this trademark filing is SECTION 8 & 15 - ACCEPTED AND ACKNOWLEDGED as of Thursday, December 12, 2024. This trademark is owned by Internet Security Research Group. The LET'S ENCRYPT trademark is filed in the Computer & Software Services & Scientific Services, Personal and Legal & Social Services categories with the following description:

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
let's encrypt

General Information


Serial Number88029629
Word MarkLET'S ENCRYPT
Filing DateMonday, July 9, 2018
Status702 - SECTION 8 & 15 - ACCEPTED AND ACKNOWLEDGED
Status DateThursday, December 12, 2024
Registration Number5689946
Registration DateTuesday, March 5, 2019
Mark Drawing3 - Illustration: Drawing or design which also includes word(s) / letter(s) / number(s)
Published for Opposition DateTuesday, December 18, 2018

Trademark Statements


Description of MarkThe mark consists of the literal elements "LET'S ENCRYPT", set to the right of a padlock design with five lines radiating from the shackle/shank of the lock, giving the appearance of a sunrise.
Pseudo MarkLET US ENCRYPT
Indication of Colors claimedColor is not claimed as a feature of the mark.
Goods and ServicesManaged 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
Goods and ServicesDevelopment, integration, and operation of computer systems to support issuance and management of digital keys and digital certificates by and to third parties

Classification Information


International Class042 - Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software.
US Class Codes100, 101
Class Status Code6 - Active
Class Status DateFriday, July 13, 2018
Primary Code042
First Use Anywhere DateThursday, July 7, 2016
First Use In Commerce DateThursday, July 7, 2016

International Class045 - Legal services; security services for the protection of property and individuals; personal and social services rendered by others to meet the needs of individuals.
US Class Codes100, 101
Class Status Code6 - Active
Class Status DateFriday, July 13, 2018
Primary Code045
First Use Anywhere DateThursday, July 7, 2016
First Use In Commerce DateThursday, July 7, 2016

Trademark Owner History


Party NameInternet Security Research Group
Party Type30 - Original Registrant
Legal Entity Type03 - Corporation
AddressSan Francisco, CA 94104

Party NameInternet Security Research Group
Party Type20 - Owner at Publication
Legal Entity Type03 - Corporation
AddressSan Francisco, CA 94129

Party NameInternet Security Research Group
Party Type10 - Original Applicant
Legal Entity Type03 - Corporation
AddressSan Francisco, CA 94129

Trademark Events


Event DateEvent Description
Friday, July 13, 2018NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
Saturday, July 14, 2018NOTICE OF DESIGN SEARCH CODE E-MAILED
Thursday, July 12, 2018NEW APPLICATION ENTERED
Monday, November 5, 2018APPROVED FOR PUB - PRINCIPAL REGISTER
Wednesday, November 28, 2018NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
Tuesday, December 18, 2018OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
Tuesday, March 5, 2019REGISTERED-PRINCIPAL REGISTER
Friday, June 25, 2021TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Friday, June 25, 2021ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Friday, June 25, 2021TEAS CHANGE OF CORRESPONDENCE RECEIVED
Tuesday, March 8, 2022TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Tuesday, March 8, 2022ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Tuesday, March 8, 2022APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Tuesday, March 8, 2022TEAS CHANGE OF CORRESPONDENCE RECEIVED
Tuesday, March 8, 2022TEAS CHANGE OF OWNER ADDRESS RECEIVED
Thursday, December 15, 2022TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Thursday, December 15, 2022ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Thursday, December 15, 2022TEAS CHANGE OF CORRESPONDENCE RECEIVED
Tuesday, March 5, 2024COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
Saturday, October 27, 2018ASSIGNED TO EXAMINER
Tuesday, December 18, 2018PUBLISHED FOR OPPOSITION
Wednesday, April 17, 2024TEAS SECTION 8 & 15 RECEIVED
Tuesday, October 15, 2024CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Thursday, December 12, 2024NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
Friday, August 22, 2025ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Friday, August 22, 2025TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Friday, August 22, 2025TEAS CHANGE OF CORRESPONDENCE RECEIVED
Thursday, December 12, 2024REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.