Legal analysis: If the trademark owner authorizes others to use the registered trademark, the authorization period shall be determined through negotiation between the trademark owner and the authorized person, and the authorization period generally cannot exceed the validity period of the trademark.

Legal basis: "The People's Republic of China and the Civil Code"

Article 39 The validity period of a registered trademark is ten years, calculated from the date of approval of registration.

Article 40 If a registered trademark expires and needs to be continued to be used, the trademark registrant shall go through the renewal procedures in accordance with the regulations within twelve months before the expiration; if it cannot be done during this period, it may A six-month grace period was granted. Each renewal of registration is valid for ten years, starting from the day after the expiration of the previous term of validity of the trademark. If renewal procedures are not completed upon expiration, the registered trademark will be cancelled. The Trademark Office shall announce the renewal of registered trademarks.

Article 43 A trademark registrant may authorize others to use its registered trademark by signing a trademark license contract. The licensor shall supervise the quality of the goods used by the licensee using its registered trademark. The licensee shall ensure the quality of the goods using the registered trademark. If the registered trademark of another person is used with permission, the name of the licensee and the place of origin of the goods must be marked on the goods using the registered trademark. If the licensor permits others to use its registered trademark, the licensor shall submit its trademark use license to the Trademark Office for record, and the Trademark Office shall announce it. The trademark use license shall not be used against bona fide third parties without registration.