Status report
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The official USPTO status record for WINDSURF, serial 98311495, as a dated PDF. One price, one document, delivered in about a minute.
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Trademark Status Report
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The USPTO's own status record for this mark, on one dated page.
- Current status with a plain-English verdict
- Owner, classes, filing basis, and every key date
- The mark as it appears on the federal record
- Every prosecution event, filing to today
- Source-cited with the exact retrieval date
Built from the USPTO's TSDR record. Assignment chain of title and TTAB proceeding files sit in separate USPTO systems and are not included.
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◆ TRADEMARKCHECKER.AITRADEMARK STATUS REPORT
WINDSURFSerial 98311495 · Principal Register
Live · Registered
Owner: Exafunction, Inc.
Class 042 - Scientific & Technology Services
Filed Dec 12, 2023
Registered Jun 16, 2026
The record shows that the mark “WINDSURF” is live and registered on the Principal Register under serial 98311495, owned by Exafunction, Inc., a Delaware corporation. The registration covers services in class 042, specifically providing temporary use of non‑downloadable computer software, SDKs, APIs, and AI‑based tools for software development and generative modeling, first used in commerce on November 12, 2024. A similar name would raise the closest concern for software‑development services that involve AI or deep learning technology, while unrelated goods or services would be farther from the scope shown. The record does not grant control over every use of the word “WINDSURF.” The latest maintenance event was the Notice of Registration Confirmation emailed on June 16, 2026, and the next significant date is the registration date itself, June 16, 2026. No enforcement actions such as oppositions or cancellations appear in the supplied history. For someone considering a similar name, the risk is that using “WINDSURF” for AI‑related software services could be viewed as infringing this active registration.
Full event history, owner details, and verdict inside.
The way I'd use it, honestly, is as the thing you attach when a bank, a marketplace, or a co-founder asks "are we clear on the name". It answers in one page.