Changes required.

If the trademark change is not processed in time, according to the provisions of the Trademark Law, when the relevant information of the trademark subject changes, you need to make a timely change application, otherwise you will face the risk of the trademark being revoked.

In addition, if a trademark has not been used for three years, anyone can apply to the Trademark Office to cancel the trademark. The Trademark Office will send a notice to the trademark registrant. If the address of the applicant changes , when the applicant cannot be contacted, it is likely that the company will not be able to receive the notification, which will delay the trademark owner's proof.