Legal analysis: According to the relevant national laws and regulations, if someone files an application for the cancellation of a trademark that has not been used for three years, the evidence provided by the owner of the trademark must be within three years of the cancellation. If the trademark is not used within the first three years from the date of application, it will not be considered valid evidence if it exceeds or exceeds the date of application. If the trademark needs to be used every two years after being idle, the evidence needs to be kept.

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.