How long is the patent license valid for filing?

China National Intellectual Property Administration shall, within 7 working days from the date of receiving the filing application, make a review and decide whether to file the application. The effective time of the application is the date of application. Article 1 1 of the Measures for Filing Patent Licensing Contracts stipulates that China National Intellectual Property Administration shall conduct an examination within 7 working days from the date of receiving the filing application and decide whether to file it. Article 1 1 of the Measures for Filing Patent License Contracts: China National Intellectual Property Administration shall examine and decide whether to file the application within 7 working days from the date of receiving the application. In the first paragraph of Article 12, if the filing application has passed the examination, China National Intellectual Property Administration will issue the Patent License Contract Filing Certificate to the parties concerned. Article 14: The relevant contents of the patent licensing contract shall be registered in the patent register by China National Intellectual Property Administration, and the following contents shall be announced in the patent announcement: licensor, licensee, main classification number, patent number, application date, authorization announcement date, license type and duration, and application date.