Legal basis: Article 10 of the Measures for the Administration of Patent Priority Examination. If China National Intellectual Property Administration agrees to give priority to the review, it shall close the case within the following time limit from the date of consent:
(1) An application for a patent for invention shall be notified of the first examination opinions within 45 days, and the case shall be closed within one year;
(two) the application for a patent for utility model and design shall be closed within two months;
(3) The patent reexamination case shall be closed within seven months;
(4) The case of invalidation of the patent for invention and utility model shall be closed within five months, and the case of invalidation of the patent for design shall be closed within four months.