Legal analysis: the patent right is valid, the term of invention patent is 20 years, and the term of utility model patent and design patent is 10 year. According to the provisions of the patent law, the term of patent right is calculated from the date of application, and the term of invention patent is 20 years. The term of utility model patent and design patent is 10 year.
Legal basis: Article 42 of the Patent Law of People's Republic of China (PRC), the term of patent right is calculated from the date of application, and the term of invention patent is 20 years; The term of utility model patent and design patent is 10 year.