| Serial Number | 99649044 |
| Word Mark | K |
| Filing Date | Thursday, February 12, 2026 |
| Status | 681 - PUBLICATION/ISSUE REVIEW COMPLETE |
| Status Date | Monday, July 20, 2026 |
| Registration Number | 0000000 |
| Registration Date | NOT AVAILABLE |
| Mark Drawing | 3 - Illustration: Drawing or design which also includes word(s) / letter(s) / number(s) |
| Published for Opposition Date | Tuesday, August 11, 2026 |
| Indication of Colors claimed | Color is not claimed as a feature of the mark. |
| Goods and Services | Antibodies for therapeutic purposes; House mark for pharmaceuticals for the treatment of neurological and neurodegenerative diseases and disorders; Pharmaceutical preparations for the treatment of neurological and neurodegenerative diseases and disorders |
| Description of Mark | The mark consists of a square with rounded corners, divided into four separate shapes by a stylized, tilted letter K. |
| 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 | Thursday, February 12, 2026 |
| Primary Code | 005 |
| First Use Anywhere Date | NOT AVAILABLE |
| First Use In Commerce Date | NOT AVAILABLE |
| Party Name | Korsana Biosciences, Inc. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Waltham, MA 02453 US |
| Event Date | Event Description |
| Thursday, February 12, 2026 | NEW APPLICATION ENTERED |
| Thursday, February 12, 2026 | APPLICATION FILING RECEIPT MAILED |
| Thursday, June 11, 2026 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Thursday, June 11, 2026 | NOTICE OF DESIGN SEARCH CODE E-MAILED |
| Friday, June 12, 2026 | ASSIGNED TO EXAMINER |
| Friday, June 26, 2026 | NON-FINAL ACTION WRITTEN |
| Friday, June 26, 2026 | NON-FINAL ACTION E-MAILED |
| Friday, June 26, 2026 | NOTIFICATION OF NON-FINAL ACTION E-MAILED |
| Wednesday, July 8, 2026 | TEAS RESPONSE TO OFFICE ACTION RECEIVED |
| Wednesday, July 8, 2026 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Wednesday, July 8, 2026 | TEAS/EMAIL CORRESPONDENCE ENTERED |
| Friday, July 10, 2026 | APPROVED FOR PUB - PRINCIPAL REGISTER |