generally speaking, trademark change takes about 6-1 months. The specific process is as follows: 1. The Trademark Office will issue the Certificate of Approval of Change of Registered Trademark within 15 days after receiving the application for change. 2. You can receive the Certificate of Approval to Change the Registered Trademark within six to eight months from the date of establishment of the application. This certificate should be used together with the original Trademark Registration Certificate. 3. The date marked on the Certificate of Approval of Change of Registered Trademark is the effective date of change of registration, and it can be used upon receipt of the Certificate of Approval of Change of Registered Trademark.

Legal basis:

Article 4 of the Trademark Law of the People's Republic of China * * * If it is necessary to continue to use a registered trademark 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 fails to be handled during this period, a six-month extension period may be granted. 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. Article 41 Where a registered trademark needs to change the name, address or other registered items of the registrant, an application for change shall be filed.