USPTO Renewal & Maintenance Deadline Calculator
Over 50% of registered trademarks are cancelled simply because owners miss mandatory USPTO filing windows. Enter your registration date below to calculate your exact legal deadlines.
Disclaimer: This calculation provides estimated filing windows based on standard USPTO statutory timelines and does not constitute formal legal advice or an attorney-client relationship.
When was your trademark registered?
To calculate your exact USPTO renewal deadlines and set up automated reminders, what date was your trademark officially registered? Check your registration certificate for the issue date.
The three mandatory USPTO filings.
Section 8 Declaration of Use (Years 5–6)
Between the 5th and 6th year after registration, you must file proof with the USPTO showing that your mark is still actively used in commerce. Missing this window results in automatic cancellation.
Section 15 Declaration of Incontestability (After Year 5)
After 5 consecutive years of active commercial use, filing a Section 15 declaration grants your mark 'incontestable' status, making it virtually immune to legal challenges regarding descriptive weakness.
Section 9 Renewal & Section 8 Maintenance (Years 9–10 & Every 10 Years)
Between the 9th and 10th year post-registration (and every decade thereafter), you must file a combined Section 8 & 9 renewal to maintain nationwide exclusive rights for another 10 years.