How to stipulate the term of patent right and what will happen if you don't pay the annual patent fee?

If you don't pay the annual fee, you will lose your patented baby. There is a late fee for paying the annual fee within half a year. After more than half a year, if you want the right, you need to pay an additional restoration fee 1000 yuan.

At the expiration of the time limit, the patent right for invention shall be maintained for 20 years from the date of application, and the patent right for utility model or design shall be maintained for 10 years from the date of application, and shall be terminated according to law.