How to apply for extension of trademark expiration: Within 12 months before expiration, and within 18 months at the latest, the trademark registrant shall submit corresponding materials to the Trademark Office and apply for extension. After review, if it is confirmed that the renewal conditions are met, a new trademark registration certificate shall be issued.

Legal basis

Article 39 of the "Trademark Law of the People's Republic of China" The validity period of a registered trademark is ten years, calculated from the date of approval of registration. Article 40 If a registered trademark expires and needs to be continued to be used, the trademark registrant shall go through the renewal procedures in accordance with the regulations within twelve months before expiration; if it fails to do so during this period, a six-month extension period may be granted . Each renewal of registration is valid for ten years, starting from the day after the expiration of the previous term of validity of the trademark. If renewal procedures are not completed upon expiration, the registered trademark will be cancelled. The Trademark Office shall announce the renewal of registered trademarks.