To benefit from the sunrise services, do I have to submit a sample of proof of use even if my trademark registration is based upon proven usage?

Yes, if you submit a registered trademark in the Clearinghouse and wish to benefit from the sunrise services, you will have to submit a single sample of proof of use as well as a signed declaration of proof of use. You can find more information concerning the proof of use in the Clearinghouse Guidelines available on this website.

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