When the examiner receives your application documents, the application number is generated. If you apply in person or electronically, you may know that the application is good and get the acceptance notice on the same day. If you apply by mail, it will take about two weeks to receive the formal admission notice. After the patent application number comes out, the patent office will not disclose your patent information immediately, unless it is qualified in the preliminary examination or directly authorized, if you look through it yourself. The information is disclosed, because you have obtained the application date after the application, the process of patent application is smooth, generally there will be no problems, and the application date is very important, but if the patent application is not smooth, resulting in rejection or withdrawal, it will be very troublesome to know later that your patent information has been registered.