Where it is necessary to continue to use a registered trademark after its expiration, it shall apply for renewal of registration within 6 months before its expiration. If the application cannot be submitted during this period, there will be a grace period of 6 months. Article 40 of the Trademark Law stipulates that if a registered trademark needs to be used after its expiration, the trademark registrant shall go through the renewal procedures in accordance with the regulations within 12 months before the expiration; If it has not been handled during this period, it can be extended for six months. The validity period of each renewal registration is ten years, counting from the day after the last expiration of the trademark. If the renewal formalities are not completed at the expiration of the period, the registered trademark shall be cancelled. The Trademark Office shall announce the renewed registered trademark.