| Serial Number | 99442940 |
| Word Mark | MATH STACKERS |
| Filing Date | Tuesday, October 14, 2025 |
| Status | 681 - PUBLICATION/ISSUE REVIEW COMPLETE |
| Status Date | Monday, March 30, 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, April 21, 2026 |
| Goods and Services | Providing online non-downloadable videos in the field of mathematics; Providing a website featuring non-downloadable videos in the field of mathematics; Educational services, namely, providing online instruction in the field of mathematics via an online website |
| NOT AVAILABLE | "MATH" |
| 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 | Tuesday, October 14, 2025 |
| Primary Code | 041 |
| First Use Anywhere Date | Wednesday, October 25, 2023 |
| First Use In Commerce Date | Wednesday, October 25, 2023 |
| Party Name | Math Stackers, Inc. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Houston, TX 77019 US |
| Event Date | Event Description |
| Tuesday, October 14, 2025 | NEW APPLICATION ENTERED |
| Tuesday, October 14, 2025 | APPLICATION FILING RECEIPT MAILED |
| Sunday, March 1, 2026 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Tuesday, March 3, 2026 | ASSIGNED TO EXAMINER |
| Monday, March 23, 2026 | EXAMINERS AMENDMENT -WRITTEN |
| Monday, March 23, 2026 | EXAMINERS AMENDMENT E-MAILED |
| Monday, March 23, 2026 | NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED |
| Monday, March 23, 2026 | EXAMINER'S AMENDMENT ENTERED |
| Monday, March 23, 2026 | APPROVED FOR PUB - PRINCIPAL REGISTER |