| Serial Number | 99136110 |
| Word Mark | STACK ELEVEN |
| Filing Date | Monday, April 14, 2025 |
| Status | 700 - REGISTERED |
| Status Date | Tuesday, December 2, 2025 |
| Registration Number | 8048393 |
| Registration Date | Tuesday, December 2, 2025 |
| Mark Drawing | 3 - Illustration: Drawing or design which also includes word(s) / letter(s) / number(s) |
| Published for Opposition Date | Tuesday, October 14, 2025 |
| Goods and Services | Advertising and marketing; On-line advertising and marketing services; Online advertising and marketing services in the field of clubs for playing a paddleball-style sport using a perforated plastic ball; Advertising, marketing and promotion services; Marketing the goods and services of others |
| Description of Mark | The mark consists of the capitalized word "STACK" over the capitalized word "ELEVEN" both to the right of a horizontal rectangle with 2 vertical rectangles over top. |
| Pseudo Mark | STACK 11 |
| International Class | 035 - Advertising; business management; business administration; office functions. |
| US Class Codes | 100, 101, 102 |
| Class Status Code | 6 - Active |
| Class Status Date | Monday, April 14, 2025 |
| Primary Code | 035 |
| First Use Anywhere Date | Monday, December 23, 2024 |
| First Use In Commerce Date | Monday, December 23, 2024 |
| Party Name | StackEleven, LLC |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | Lewes, DE 19958 |
| Party Name | StackEleven, LLC |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | Lewes, DE 19958 |
| Party Name | StackEleven, LLC |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | Lewes, DE 19958 |
| Event Date | Event Description |
| Monday, April 14, 2025 | NEW APPLICATION ENTERED |
| Monday, April 14, 2025 | APPLICATION FILING RECEIPT MAILED |
| Tuesday, August 26, 2025 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Tuesday, August 26, 2025 | NOTICE OF DESIGN SEARCH CODE E-MAILED |
| Sunday, September 7, 2025 | ASSIGNED TO EXAMINER |
| Thursday, September 4, 2025 | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED |
| Thursday, September 4, 2025 | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED |
| Thursday, September 4, 2025 | TEAS CHANGE OF CORRESPONDENCE RECEIVED |
| Friday, September 12, 2025 | EXAMINERS AMENDMENT -WRITTEN |
| Friday, September 12, 2025 | EXAMINERS AMENDMENT E-MAILED |
| Friday, September 12, 2025 | NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED |
| Friday, September 12, 2025 | EXAMINER'S AMENDMENT ENTERED |
| Monday, September 15, 2025 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Wednesday, October 8, 2025 | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |
| Tuesday, October 14, 2025 | PUBLISHED FOR OPPOSITION |
| Tuesday, October 14, 2025 | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED |
| Tuesday, December 2, 2025 | REGISTERED-PRINCIPAL REGISTER |
| Tuesday, December 2, 2025 | NOTICE OF REGISTRATION CONFIRMATION EMAILED |