When the Trademark Office receives the applicant’s cancellation application, it will notify the trademark registrant and require the registrant to submit the use of the trademark in the past three years within 2 months from the date of receipt of the notice. Evidence documents. After the Trademark Office receives evidence of use by the trademark registrant, it will review the evidence and make a decision on whether to cancel the registered trademark. Decision letters will be issued to the trademark registrant and the applicant respectively. If after 2 months, the registrant has not submitted evidence of use to the Trademark Office or the evidence is invalid, the Trademark Office will revoke the registered trademark. If the registrant is dissatisfied with the Trademark Office’s decision to cancel a registered trademark, the registrant may submit a “cancellation review application” to the Trademark Review and Adjudication Board within fifteen days from the date of receipt of the cancellation decision. If you are dissatisfied with the ruling of the Trademark Review and Adjudication Board, you may file a lawsuit with the People's Court within 30 days from the date of receipt of the ruling.