Are you asking about the time from the patent application to the grant or rejection?
After applying for utility model patents and design patents, they will be authorized after passing the preliminary examination. If the examination goes smoothly, it will take about 8 months for utility models and about 5 months for appearance designs. If during the examination, it is discovered that the patent document is inconsistent with the provisions of the Patent Law and its Implementing Rules, and a notice of examination opinion or a notice of correction is issued, the examination period will become longer. The details and speed of the reply, as well as the examination opinion or notice of correction, will be The content of the book matters.
The review cycle for invention patents seems to have been accelerated, and the case can be concluded in about 24 months.
There are many situations where the application will not be accepted! You can check Article 39 of the Implementing Rules of the Patent Law. Although the provisions are not long, they are very time-consuming to explain.