legal ground
Article 9 of the Measures for the Administration of Patent Priority Examination: After accepting and examining the request for priority examination, China National Intellectual Property Administration shall promptly notify the applicant of the examination opinions. Article 10 If China National Intellectual Property Administration agrees to give priority to the examination, 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 opinions of the first examination 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. Article 11 For a patent application requiring priority examination, the applicant shall make a reply or make corrections as soon as possible. The applicant's reply period to the notice of examination opinions on the invention patent is two months from the date of issuance, and the reply period to the notice of examination opinions on the utility model and design patent is fifteen days from the date of issuance.