Legal analysis: In the installment sales contract, the limitation period for the seller to exercise the right of action is calculated from the day when the buyer fails to pay the price for the first time, and the ordinary limitation period (3 years) is applicable. If the seller makes a request to the buyer, or the buyer continues to perform the payment obligation and does not specifically agree on the current payment, it is deemed that the payment obligation of the previous period has been fulfilled, and the limitation of action is interrupted.

According to the relevant laws and regulations, the limitation of action for requesting protection of civil rights from the people's court is three years. Where there are other provisions in the law, those provisions shall prevail.

The limitation period of action shall be counted from the date when the creditor knows or should know that the right is damaged and the debtor knows it. Where there are other provisions in the law, those provisions shall prevail. However, the people's court shall not protect the rights that have been damaged for more than 20 years. Under special circumstances, the people's court may decide to extend the time according to the application of the obligee.

legal ground

Article 188 of the Civil Law requires the people's court to protect citizens' rights for three years. Where there are other provisions in the law, those provisions shall prevail.

The limitation period of action shall be counted from the date when the creditor knows or should know that the right is damaged and the debtor knows it. Where there are other provisions in the law, those provisions shall prevail. However, the people's court shall not protect the rights that have been damaged for more than 20 years. Under special circumstances, the people's court may decide to extend the time according to the application of the obligee.