How to judge whether to authorize from the patent announcement number

With the announcement number, it must be authorized. Because all patent rights in China will take effect as of the date of announcement.

It should be noted that the invention patent should be published twice. The first time is before the substantive examination, it is called publication, and there will be an open number. At this time, there is no authorization; The second time is the announcement after substantive examination, and the announcement number is available. Please pay attention to the difference.