How MarkWatch works

MarkWatch helps self-filed US trademark owners avoid silently missing the Section 8 deadline — the filing that, if missed past the grace period, cancels the registration with no revival.

The free calculator

Enter your USPTO registration number on the deadline calculator. We compute your Section 8 window (5th–6th anniversary) and the true irreversible cliff at the end of the 6-month grace period (~6.5 years from registration).

What MarkWatch is — and isn't

It is an informational deadline tool and an early-access watch list.
It is not a law firm and does not file anything on your behalf.
It is not legal advice and not a substitute for a trademark attorney.
It is not affiliated with or endorsed by the USPTO.

Monitoring and automated reminders are still being built. Joining the watch list adds you to the early-access list; always verify your deadlines in your official USPTO records.

⚠️ Not legal advice. Verify deadlines with the USPTO. Dates are computed from public USPTO TSDR records and may lag or contain errors. Confirm your Section 8 window and grace-period cliff in your official USPTO records before relying on this.