Legal analysis: The following matters should be paid attention to when using trademarks:

1. Registered trademarks should be used in strict accordance with the trademarks approved in the Trademark Registration Certificate and the goods or services approved for use;

2. A trademark registrant may not change the words, figures or their combinations of a registered trademark by himself; Not to change the name, address or other registered items of the registrant of a registered trademark;

3. The trademark registrant has the obligation to use the registered trademark. If a registered trademark stops being used for three consecutive years, the trademark may be revoked according to law;

4. It is an illegal act for a trademark registrant to use its registered trademark beyond the scope of goods or services approved by the Trademark Registration Certificate, and to indicate the registration mark.

Legal basis: Article 49 of the Trademark Law of the People's Republic of China * * * If a trademark registrant changes the registered trademark, the name, address or other registered items of the registrant during the use of the registered trademark, the local administrative department for industry and commerce shall order it to make corrections within a time limit; If it fails to make corrections within the time limit, its registered trademark shall be revoked by the Trademark Office. If a registered trademark becomes the common name of the goods it has approved for use or is not used for three consecutive years without justifiable reasons, any unit or individual may apply to the Trademark Office for cancellation of the registered trademark.