First of all, the materials you should prepare are 1. Trademark agency power of attorney signed or stamped by the trademark cancellation applicant; 2. Application for revocation of the trademark that has not been used for three years signed or stamped by the trademark cancellation applicant.

It takes about a year to complete the cancellation of a trademark that has not been used for three years. The entire process includes application, requiring the trademark registrant to provide evidence of use, review, announcement, and issuance of a notice.

The official fee for applying for revocation of a trademark that has not been used for three years is 1,000 yuan. Of course, for convenience, you can find an agency with a fee of around 3,500 (regular fee + agency fee). Hope it helps.