| Serial Number | 99022842 |
| Word Mark | KNOW ESR1 |
| Filing Date | Wednesday, January 29, 2025 |
| Status | 700 - REGISTERED |
| Status Date | Tuesday, October 21, 2025 |
| Registration Number | 7991872 |
| Registration Date | Tuesday, October 21, 2025 |
| Mark Drawing | 3 - Illustration: Drawing or design which also includes word(s) / letter(s) / number(s) |
| Published for Opposition Date | Tuesday, September 2, 2025 |
| Goods and Services | Educational services, namely, providing classes, seminars, workshops in the fields of medicine and pharmaceuticals; Medical training and teaching; Organizing and conducting of conventions in the field of medicine and pharmaceuticals; Consultancy relating to arranging and conducting of congresses; Arranging and conducting of conferences and congresses in the field of medicine and pharmaceuticals |
| Goods and Services | Consulting services in the field of medical care; Providing medical information |
| Description of Mark | The mark consists of the designation "KNOW" in light blue above the designation "ESR1" in blue, all outlined in light blue, except for the upper left corner which is outlined in red, all to the left of a stylized hand in light blue with the index finger pointed upward and the thumb folded over the third, fourth, and fifth fingers. |
| Pseudo Mark | KNOW ESR ONE |
| Indication of Colors claimed | The color(s) blue, light blue, and red is/are claimed as a feature of the mark. |
| International Class | 041 - Education; providing of training; entertainment; sporting and cultural activities. |
| US Class Codes | 100, 101, 107 |
| Class Status Code | 6 - Active |
| Class Status Date | Wednesday, January 29, 2025 |
| Primary Code | 041 |
| First Use Anywhere Date | Friday, July 26, 2024 |
| First Use In Commerce Date | Friday, July 26, 2024 |
| International Class | 044 - Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, horticulture and forestry services. |
| US Class Codes | 100, 101 |
| Class Status Code | 6 - Active |
| Class Status Date | Thursday, January 30, 2025 |
| Primary Code | 044 |
| First Use Anywhere Date | Friday, July 26, 2024 |
| First Use In Commerce Date | Friday, July 26, 2024 |
| Party Name | Stemline Therapeutics, Inc. |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 03 - Corporation |
| Address | New York, NY 10022 |
| Party Name | Stemline Therapeutics, Inc. |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 03 - Corporation |
| Address | New York, NY 10022 |
| Party Name | Stemline Therapeutics, Inc. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | New York, NY 10022 |
| Event Date | Event Description |
| Wednesday, January 29, 2025 | NEW APPLICATION ENTERED |
| Wednesday, January 29, 2025 | APPLICATION FILING RECEIPT MAILED |
| Tuesday, July 1, 2025 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Tuesday, July 1, 2025 | NOTICE OF DESIGN SEARCH CODE E-MAILED |
| Wednesday, July 9, 2025 | ASSIGNED TO EXAMINER |
| Monday, July 28, 2025 | TEAS VOLUNTARY AMENDMENT RECEIVED |
| Monday, July 28, 2025 | PRELIMINARY/VOLUNTARY AMENDMENT - ENTERED |
| Friday, August 1, 2025 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Wednesday, August 27, 2025 | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |
| Tuesday, September 2, 2025 | PUBLISHED FOR OPPOSITION |
| Tuesday, September 2, 2025 | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED |
| Tuesday, October 21, 2025 | REGISTERED-PRINCIPAL REGISTER |
| Tuesday, October 21, 2025 | NOTICE OF REGISTRATION CONFIRMATION EMAILED |