How long is the publicity period after the patent is approved?

First of all, there is no publicity period for patents. Then, after the patent has passed the actual trial, it is necessary to issue a notice of authorization. After paying the annual fee and other fees within two months, the patent office will issue a patent certificate. As for patent transfer, it should be possible at any time, just with a different name. Without authorization, it is called patent application right transfer, and after authorization, it is called patent right transfer ... If you don't understand, then ask me.