Legal analysis: the protection period of invention patent is 20 years, and the protection period of utility model patent and design patent is 10 year. If the patent fee is not paid or the patent right is renounced in writing, the protection period shall be terminated in advance.
Legal basis: According to Article 42 of the Patent Law, the term of the invention patent right is 20 years, and the term of the utility model patent right and the design patent right is 10 years, all of which are counted from the date of application.