the validity period of trademark registration is ten years; The trademark shall be renewed within 12 months before its expiration. Trademark renewal can be handled by itself or by a trademark agency such as Alibaba Cloud. If you entrust a trademark agency, you only need to prepare relevant application materials.

Notes on trademark renewal:

1. After the application for renewal is approved, the Trademark Office will send the applicant a renewal certificate by mail according to the address filled in the application.

2. If the application for renewal does not meet the requirements, the Trademark Office will notify the applicant in writing by post to make corrections within a time limit according to the address filled in the application.

3. If the renewal application cannot be approved for other reasons, the Trademark Office will notify the applicant in writing by post according to the address filled in the application.

4. If the applicant entrusts a trademark agency to apply for renewal, the Trademark Office will not have any correspondence with the applicant directly, and all documents will be sent to the trademark agency.

5. The category of the application shall be filled in according to the international classification approved by the Trademark Registration Certificate.

Article 38 of the Trademark Law clearly stipulates that "using a trademark identical with or similar to its registered trademark on the same or similar goods without the permission of the registered trademark is regarded as an infringement of the exclusive right to use a registered trademark".

It can be seen that if an enterprise does not register its trademarks, it is possible that the registered trademarks used on the same or similar goods are identical or similar, which is called infringement. Therefore, using unregistered trademarks, regardless of your original intention, always has the possibility of infringing on the exclusive right of others to register trademarks.