Will my registration be cancelled if I do not file a Renewal Declaration?

Yes. The United States Patent and Trademark Office will cancel any registration on either the Principal Register or the Supplemental Register if a timely Renewal Declaration is not filed by the current owner or legal representative of the registration during the prescribed time periods. The USPTO has no authority to waive or extend the deadline for filing a proper Declaration. Registrations cancelled due to the failure to file a Declaration cannot be reinstated or “revived.” A new application to pursue registration of the mark again must be filed.