The legal status of a patent includes: preliminary examination, substantive examination, acceptance, authorization and maintenance of patent rights. At which step can one obtain a patent certificate?

After the patent application is submitted, it is first accepted and a notice of acceptance is issued

After the fee is paid, it enters the preliminary examination. After the invention patent passes the preliminary examination, it enters the public stage, and then enters the actual examination based on the application. , after passing the actual examination, enter the authorization and issue an authorization notice. At this time, you can get the patent certificate by paying the relevant fees in full. In the later stage, you can maintain the patent right by paying the annual fee year by year.