Legal analysis: Intellectual property rights have expiration dates. The term of protection of copyright is 50 years, calculated from the date of publication; the term of invention patent rights is twenty years, and the term of utility model patent rights and design patent rights is ten years, calculated from the date of application; the validity period of registered trademarks It is 10 years, calculated from the date of approval of registration.

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

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.