What should I do if my trademark is about to expire? It is definitely necessary to extend the validity period of the trademark, so how to extend the validity period of the trademark, the method is as follows: The method to extend the validity period of the trademark is very simple, that is, renew the trademark, but some trademark holders forget to renew the trademark because they do not grasp the time. The phenomenon of renewal. Just allow yourself to remember this time. If a registered trademark needs to be continued to be used after it expires, it should apply for renewal of registration within 12 months before expiration; if the application is not made during this period, a six-month extension period can be given. If an application is not made within the extension period, the registered trademark will be cancelled. After the Trademark Office examines the trademark renewal registration application, it will issue a trademark renewal certificate and will not issue another trademark registration certificate. The original trademark registration certificate and trademark renewal certificate will be used together. Trademark renewal: After the trademark expires, an additional 10 years of renewal time are added, and the trademark renewal can be unlimited.