Consequences of not paying the annual patent fee

Will lead to the termination of the patent right. If the patentee fails to pay the annual fee on time or the amount paid is insufficient after the year when the patent right was granted, the patent administration department of the State Council shall notify the patentee to pay the annual fee within 6 months from the date when the annual fee should be paid, and pay the late fee at the same time; The amount of the late payment fee is calculated by adding 5% of the full annual fee of the current year for every 1 month that exceeds the prescribed payment time; If the annual fee is not paid at the expiration of the period, the patent right shall be terminated from the date when the annual fee should be paid, and the patent right shall become invalid after the termination.