Legal analysis: To apply for cancellation of a registered trademark that has been suspended from use for three consecutive years, the following materials should be submitted: 1. Application for cancellation of a registered trademark that has been suspended for three consecutive years (the reason for cancellation should be stated); 2. Application If you go directly to the trademark registration hall to handle the application, you must submit the applicant's subject qualification certification documents confirmed by signature or seal (including a copy of the business license, ID card, etc.). At the same time, you need to submit the original and copy of the person in charge of the ID card, and the original will be returned after comparison; 3. If you entrust a trademark agency to handle the process, you need to submit the applicant's subject qualification documents (mainly including a copy of the business license, ID card, etc.) ;At the same time, a trademark agency power of attorney is required.

Legal basis: Article 49 of the "Trademark Law of the People's Republic of China". In the process of using the registered trademark, the trademark registrant may change the registered trademark, the registrant's name, address or other registered trademarks on his own initiative. If any matter is found, the local industrial and commercial administrative department shall order it to make corrections within a time limit; if it fails to make corrections within the time limit, the Trademark Office shall revoke its registered trademark. If a registered trademark becomes the common name of the goods approved for use or has not been used for three consecutive years without justifiable reasons, any unit or individual may apply to the Trademark Office to cancel the registered trademark. The Trademark Office shall make a decision within nine months from the date of receipt of the application. If there are special circumstances that require an extension, it can be extended for three months with the approval of the industrial and commercial administration department of the State Council.