| Serial Number | 87840660 |
| Word Mark | ET |
| Filing Date | Monday, March 19, 2018 |
| Status | 702 - SECTION 8 & 15 - ACCEPTED AND ACKNOWLEDGED |
| Status Date | Saturday, September 27, 2025 |
| Registration Number | 5758909 |
| Registration Date | Tuesday, May 21, 2019 |
| Mark Drawing | 5 - Drawing with word(s) / letter(s) / number(s) in Stylized form |
| Published for Opposition Date | Tuesday, July 31, 2018 |
| Description of Mark | The mark consists of the stylized writing of "ET". |
| Certificate of Correction for Registration | In the statement, line 1, "CALIFORNIA" should be deleted, and "DELAWARE" should be inserted. |
| Pseudo Mark | EUREKA THERAPEUTICS |
| Indication of Colors claimed | Color is not claimed as a feature of the mark. |
| Goods and Services | Medical research; Medical and scientific research in the field of oncology and immunology; Medical and scientific research in the field of immunotherapy and antibodies; Medical research services in the field of cancer; Scientific research; Contract research services, namely, medical, pharmaceutical, and scientific research for others |
| International Class | 042 - 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 Codes | 100, 101 |
| Class Status Code | 6 - Active |
| Class Status Date | Monday, March 26, 2018 |
| Primary Code | 042 |
| First Use Anywhere Date | Friday, March 30, 2018 |
| First Use In Commerce Date | Friday, March 30, 2018 |
| Party Name | Eureka Therapeutics, Inc. |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 03 - Corporation |
| Address | Emeryville, CA 94608 |
| Party Name | Eureka Therapeutics, Inc. |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 03 - Corporation |
| Address | Emeryville, CA 94608 |
| Party Name | Eureka Therapeutics, Inc. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Emeryville, CA 94608 |
| Event Date | Event Description |
| Monday, March 26, 2018 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Thursday, March 22, 2018 | NEW APPLICATION ENTERED |
| Monday, March 25, 2019 | TEAS STATEMENT OF USE RECEIVED |
| Thursday, June 28, 2018 | ASSIGNED TO EXAMINER |
| Thursday, June 28, 2018 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Wednesday, July 11, 2018 | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |
| Tuesday, July 31, 2018 | PUBLISHED FOR OPPOSITION |
| Tuesday, July 31, 2018 | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED |
| Tuesday, September 25, 2018 | NOA E-MAILED - SOU REQUIRED FROM APPLICANT |
| Thursday, February 7, 2019 | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED |
| Thursday, February 7, 2019 | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED |
| Monday, March 25, 2019 | USE AMENDMENT FILED |
| Monday, February 22, 2021 | TEAS SECTION 7 REQUEST RECEIVED |
| Tuesday, April 9, 2019 | CASE ASSIGNED TO INTENT TO USE PARALEGAL |
| Wednesday, April 10, 2019 | STATEMENT OF USE PROCESSING COMPLETE |
| Wednesday, April 17, 2019 | ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED |
| Thursday, April 18, 2019 | NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED |
| Tuesday, May 21, 2019 | REGISTERED-PRINCIPAL REGISTER |
| Monday, April 19, 2021 | CASE ASSIGNED TO POST REGISTRATION PARALEGAL |
| Monday, April 19, 2021 | CORRECTION UNDER SECTION 7 - PROCESSED |
| Tuesday, May 21, 2024 | COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED |
| Friday, May 16, 2025 | TEAS SECTION 8 & 15 RECEIVED |
| Saturday, September 27, 2025 | CASE ASSIGNED TO POST REGISTRATION PARALEGAL |
| Saturday, September 27, 2025 | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. |
| Saturday, September 27, 2025 | NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED |