LEF Trademark

Trademark Overview

On Tuesday, May 4, 2021, a trademark application was filed for LEF with the United States Patent and Trademark Office. The USPTO has given the LEF trademark a serial number of 90688948. The federal status of this trademark filing is ABANDONED - NO STATEMENT OF USE FILED as of Monday, November 17, 2025. This trademark is owned by Exxon Mobil Corporation. The LEF trademark is filed in the Construction & Repair Services, Computer & Software Services & Scientific Services, Personal, and Legal & Social Services categories with the following description:

Industrial design services

Providing technical assistance and support, namely, providing technical advice regarding the installation, repair, and maintenance of petrochemical equipment used for petroleum refining

Licensing of intellectual property
lef

General Information

Serial Number90688948
Word MarkLEF
Filing DateTuesday, May 4, 2021
Status606 - ABANDONED - NO STATEMENT OF USE FILED
Status DateMonday, November 17, 2025
Registration Number0000000
Registration DateNOT AVAILABLE
Mark Drawing4 - Illustration: Drawing with word(s) / letter(s) / number(s) in Block form
Published for Opposition DateTuesday, February 15, 2022

Trademark Statements

Goods and ServicesIndustrial design services
Pseudo MarkLEAF
Goods and ServicesProviding technical assistance and support, namely, providing technical advice regarding the installation, repair, and maintenance of petrochemical equipment used for petroleum refining
Goods and ServicesLicensing of intellectual property

Classification Information

International Class037 - Building construction; repair; installation services.
US Class Codes100, 103, 106
Class Status Code6 - Active
Class Status DateThursday, August 5, 2021
Primary Code037
First Use Anywhere DateNOT AVAILABLE
First Use In Commerce DateNOT AVAILABLE
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 DateThursday, August 5, 2021
Primary Code042
First Use Anywhere DateNOT AVAILABLE
First Use In Commerce DateNOT AVAILABLE
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 DateThursday, August 5, 2021
Primary Code045
First Use Anywhere DateNOT AVAILABLE
First Use In Commerce DateNOT AVAILABLE

Trademark Owner History

Party NameExxon Mobil Corporation
Party Type20 - Owner at Publication
Legal Entity Type03 - Corporation
AddressSpring, TX 77389
Party NameExxon Mobil Corporation
Party Type10 - Original Applicant
Legal Entity Type03 - Corporation
AddressIrving, TX 750392298

Trademark Events

Event DateEvent Description
Friday, May 7, 2021NEW APPLICATION ENTERED
Thursday, August 5, 2021NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
Thursday, January 6, 2022ASSIGNED TO EXAMINER
Friday, January 7, 2022EXAMINERS AMENDMENT -WRITTEN
Friday, January 7, 2022EXAMINERS AMENDMENT E-MAILED
Friday, January 7, 2022NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED
Friday, January 7, 2022EXAMINER'S AMENDMENT ENTERED
Friday, January 7, 2022APPROVED FOR PUB - PRINCIPAL REGISTER
Wednesday, January 26, 2022NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
Tuesday, February 15, 2022PUBLISHED FOR OPPOSITION
Tuesday, February 15, 2022OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
Friday, March 11, 2022EXTENSION OF TIME TO OPPOSE RECEIVED
Thursday, August 25, 2022EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED
Tuesday, October 4, 2022NOA E-MAILED - SOU REQUIRED FROM APPLICANT
Wednesday, March 29, 2023SOU TEAS EXTENSION RECEIVED
Wednesday, March 29, 2023SOU EXTENSION 1 FILED
Wednesday, March 29, 2023SOU EXTENSION 1 GRANTED
Friday, March 31, 2023NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
Wednesday, July 19, 2023ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Friday, September 29, 2023SOU TEAS EXTENSION RECEIVED
Tuesday, October 10, 2023CASE ASSIGNED TO INTENT TO USE PARALEGAL
Friday, September 29, 2023SOU EXTENSION 2 FILED
Tuesday, October 10, 2023SOU EXTENSION 2 GRANTED
Wednesday, October 11, 2023NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
Monday, April 1, 2024SOU TEAS EXTENSION RECEIVED
Monday, April 1, 2024SOU EXTENSION 3 FILED
Monday, April 1, 2024SOU EXTENSION 3 GRANTED
Tuesday, April 2, 2024NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
Monday, September 30, 2024SOU TEAS EXTENSION RECEIVED
Monday, September 30, 2024SOU EXTENSION 4 FILED
Monday, September 30, 2024SOU EXTENSION 4 GRANTED
Monday, September 30, 2024NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
Thursday, April 3, 2025SOU TEAS EXTENSION RECEIVED
Tuesday, June 17, 2025TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Tuesday, June 17, 2025ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Tuesday, June 17, 2025TEAS CHANGE OF CORRESPONDENCE RECEIVED
Tuesday, June 17, 2025TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
Wednesday, November 12, 2025CASE ASSIGNED TO INTENT TO USE PARALEGAL
Wednesday, April 2, 2025SOU EXTENSION 5 FILED
Wednesday, November 12, 2025SOU EXTENSION 5 GRANTED
Thursday, November 13, 2025NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
Monday, November 17, 2025ABANDONMENT - NO USE STATEMENT FILED
Monday, November 17, 2025ABANDONMENT NOTICE E-MAILED - NO USE STATEMENT FILED

Related Keywords

providing technical used equipment petrochemical petroleum licensing property intellectual maintenance