O Trademark
Trademark Overview
On Wednesday, December 3, 2025, a trademark application was filed for O with the United States Patent and Trademark Office. The USPTO has given the O trademark a serial number of 99526775. The federal status of this trademark filing is PUBLISHED FOR OPPOSITION as of Tuesday, May 26, 2026. This trademark is owned by Microsoft Corporation. The O trademark is filed in the Computer & Software Services & Scientific Services category with the following description:
providing temporary use of on-line non-downloadable software and applications for email, calendaring, and contacts management; providing temporary use of on-line non-downloadable software and applications using artificial intelligence for email, calendaring, and contacts management
General Information
| Serial Number | 99526775 |
| Word Mark | O |
| Filing Date | Wednesday, December 3, 2025 |
| Status | 686 - PUBLISHED FOR OPPOSITION |
| Status Date | Tuesday, May 26, 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, May 26, 2026 |
Trademark Statements
| Goods and Services | providing temporary use of on-line non-downloadable software and applications for email, calendaring, and contacts management; providing temporary use of on-line non-downloadable software and applications using artificial intelligence for email, calendaring, and contacts management |
| Description of Mark | The mark consists of a square shape in medium blue containing the letter “O” in white in the center partially covering three stacked and curved ribbons forming a three-dimensional envelope design. The outer portion of the envelope design appears in gradient shades of light blue. The inner portion of the envelope design consists of three stacked and curved ribbons with the upper left ribbon in gradient shades of light blue, the middle ribbon in gradient shades of medium blue, and the bottom right ribbon in dark blue. |
| Indication of Colors claimed | The color(s) white, light blue, medium blue, and dark blue is/are claimed as a feature of the mark. |
Classification Information
| 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 | Wednesday, December 3, 2025 |
| Primary Code | 042 |
| First Use Anywhere Date | Thursday, October 16, 2025 |
| First Use In Commerce Date | Thursday, October 16, 2025 |
Trademark Owner History
| Party Name | Microsoft Corporation |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 03 - Corporation |
| Address | Cincinnati, OH 45202
US |
| Party Name | Microsoft Corporation |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Cincinnati, OH 45202
US |
Trademark Events
| Event Date | Event Description |
| Wednesday, December 3, 2025 | NEW APPLICATION ENTERED |
| Wednesday, December 3, 2025 | APPLICATION FILING RECEIPT MAILED |
| Wednesday, March 25, 2026 | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED |
| Wednesday, March 25, 2026 | NOTICE OF DESIGN SEARCH CODE E-MAILED |
| Monday, March 30, 2026 | ASSIGNED TO EXAMINER |
| Wednesday, April 22, 2026 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Friday, May 1, 2026 | ON HOLD - ELECTRONIC RECORD REVIEW REQUIRED |
| Wednesday, May 20, 2026 | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED |
| Tuesday, May 26, 2026 | PUBLISHED FOR OPPOSITION |
| Tuesday, May 26, 2026 | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED |
