Legal analysis: The evidence materials for trademark use are as follows: 1. Invoice. 2. Contract (or agreement). 3. Advertising items: Advertisements include advertisements for goods and services published in various media such as radio, television, newspapers, magazines, etc. 4. Packaging: Packaging includes product packaging, service supplies packaging or containers, etc.

Legal basis: "Trademark Law of the People's Republic of China"

Article 49: The trademark registrant may change the registered trademark, registration name or trademark on his own during the use of the registered trademark. If the person's name, address or other registration information is changed, the local industrial and commercial administrative department shall order it to make corrections within a time limit; if it fails to make corrections within the time limit, the Trademark Office shall revoke the registered trademark.

If a registered trademark becomes the common name of the goods approved for use or is not used for three consecutive years without justifiable reasons, any unit or individual may apply to the Trademark Office to cancel the registered trademark. The Trademark Office shall make a decision within nine months from the date of receipt of the application. If there are special circumstances that require an extension, it can be extended for three months with the approval of the industrial and commercial administration department of the State Council.

Article 50 If a registered trademark is revoked, declared invalid or will not be renewed upon expiration, within one year from the date of cancellation, invalidation or cancellation, the Trademark Office shall, within one year from the date of revocation, declaration of invalidity or cancellation, conduct a review of any trademark that is identical or similar to the trademark. The trademark registration application will not be approved.

Article 51 Anyone who violates the provisions of Article 6 of this Law shall be ordered by the local industrial and commercial administration department to apply for registration within a time limit. If the illegal business volume exceeds 50,000 yuan, a fine of 2% of the illegal business volume may be imposed. If there is no illegal business volume or the illegal business volume is less than 50,000 yuan, a fine of not more than 10,000 yuan may be imposed.

Article 52 If an unregistered trademark is used as a registered trademark, or the use of an unregistered trademark violates the provisions of Article 10 of this Law, the local industrial and commercial administrative department shall stop it, make corrections within a time limit, and may It is notified that if the illegal business volume exceeds 50,000 yuan, a fine of not more than 20% of the illegal business volume may be imposed. If there is no illegal business volume or the illegal business volume is less than 50,000 yuan, a fine of not more than 10,000 yuan may be imposed.

Article 53 Anyone who violates the provisions of paragraph 5 of Article 14 of this Law shall be ordered to make corrections by the local industrial and commercial administrative department and shall be fined 100,000 yuan.

Article 54 If the party concerned is dissatisfied with the Trademark Office’s decision to revoke or not revoke a registered trademark, he may apply to the Trademark Review and Adjudication Board for review within fifteen days from the date of receipt of the notice. The Trademark Review and Adjudication Board shall make a decision within nine months from the date of receipt of the application and notify the parties in writing. If there are special circumstances that require an extension, it can be extended for three months with the approval of the industrial and commercial administration department of the State Council. If the party concerned is dissatisfied with the decision of the Trademark Review and Adjudication Board, it may file a lawsuit with the People's Court within thirty days from the date of receipt of the notice.