The limitation of action for trademark infringement is two years, counting from the date when the trademark registrant or interested party knows or should know about the infringement. Where a trademark registrant or interested party files a lawsuit for more than two years, and the infringement continues when the lawsuit is filed, the people's court shall order the defendant to stop the infringement within the validity period of the exclusive right to use a registered trademark, and the amount of compensation for infringement damages shall be calculated forward for two years from the date when the obligee files a lawsuit with the people's court. Article 188 of the Civil Law of People's Republic of China (PRC) requests the people's court to protect civil rights, and the limitation of action 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. Article 189 Where the parties agree to perform the same debt by installments, the limitation period of action shall be counted from the date when the last installment expires. Article 192 Upon the expiration of the limitation of action, the debtor may raise a defense of non-performance. After the expiration of the limitation period of action, if the debtor agrees to perform it, it shall not defend itself on the grounds of the expiration of the limitation period of action; If the debtor voluntarily performs, it may not request the return. Article 193 A people's court may not apply the limitation of action on its own initiative.