Extended data:
According to Article 34 of the Patent Law of People's Republic of China (PRC):
After receiving an application for a patent for invention, the administrative department for patent in the State Council, after preliminary examination, finds that it conforms to the provisions of this Law, and shall publish it immediately after 18 months from the date of application. The patent administration department of the State Council may publish its application at an early date upon the request of the applicant.
Article 39 stipulates that if an application for a patent for invention is not found to be rejected after substantive examination, the patent administration department in the State Council shall make a decision to grant a patent right for invention, issue a patent certificate for invention, and register and announce it at the same time. The invention patent right shall take effect as of the date of announcement.
References:
People's Republic of China (PRC) Patent Law (Presidential Decree No.8)-China Government Network