| Serial Number | 99538015 |
| Word Mark | PSITHERA |
| Filing Date | Tuesday, December 9, 2025 |
| Status | 681 - PUBLICATION/ISSUE REVIEW COMPLETE |
| Status Date | Monday, May 4, 2026 |
| Registration Number | 0000000 |
| Registration Date | NOT AVAILABLE |
| Mark Drawing | 4 - Illustration: Drawing with word(s) / letter(s) / number(s) in Block form |
| Published for Opposition Date | Tuesday, May 26, 2026 |
| Goods and Services | Pharmaceutical preparations for modulating proteins for medical purposes; Pharmaceutical preparations for the treatment of inflammatory diseases; Pharmaceutical preparations for the treatment of immunological diseases |
| Goods and Services | Drug discovery services; Research and development in the pharmaceutical and biotechnology fields; Research and development in the field of biochemistry; Research and development in the field of molecular medicine; Research and development in the field of small-molecule pharmaceuticals; Research and development in the field of inflammatory and immunological diseases; Research and development in the field of allosteric inhibitors; Research and development in the field of drug discovery combining computation-based, physics-based, and biochemistry-based approaches |
| International Class | 005 - Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes; dietetic substances adapted for medical use, food for babies; plasters, materials for dressings; material for stopping teeth, dental wax; disinfectants; preparations for destroying vermin; fungicides, herbicides. |
| US Class Codes | 005, 006, 018, 044, 046, 051, 052 |
| Class Status Code | 6 - Active |
| Class Status Date | Tuesday, December 9, 2025 |
| Primary Code | 005 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| 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 | Tuesday, December 9, 2025 |
| Primary Code | 042 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| Party Name | Psivant Therapeutics, Inc. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Watertown, MA 02472 US |
| Event Date | Event Description |
| Tuesday, December 9, 2025 | NEW APPLICATION ENTERED |
| Tuesday, December 9, 2025 | APPLICATION FILING RECEIPT MAILED |
| Thursday, February 12, 2026 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Monday, April 13, 2026 | ASSIGNED TO EXAMINER |
| Monday, April 27, 2026 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Wednesday, May 20, 2026 | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |