(1) Expiration and termination: the invention patent right shall be maintained for 20 years from the date of application, and the utility model or design patent right shall be maintained for 10 years from the date of application, and shall be terminated according to law;
(2) Termination without payment: If the patentee fails to pay the annual fee and overdue fine in full as required, the patent right shall be terminated from the expiration date of the previous year.