P24-30
According to the provisions of the Patent Law, the term of the invention patent right is 20 years, the term of the utility model patent right is 10 year, and the term of the design patent right is 15 year, all of which are counted from the date of application. . The date when the patent administrative department of the State Council receives the patent application documents is the filing date. If the application documents are mailed, the postmark date shall be the application date.