When did the patent term come into effect?

Legal analysis: the term of patent right is calculated from the date of application, the term of invention patent right is 20 years, and the term of utility model patent right and design patent right is 10 years, all of which are calculated from the date of application. After the expiration of the patent right, the patent right shall be terminated.

Legal basis: Article 3 of the Patent Law of People's Republic of China (PRC), the State Council Patent Administration Department is responsible for the management of patent work throughout the country; Accept and examine patent applications in a unified manner and grant patent rights according to law. The departments for patent administration under the people's governments of provinces, autonomous regions and municipalities directly under the Central Government shall be responsible for patent administration within their respective administrative areas.