Trademark infringement is a civil case, and the limitation of action for requesting protection of civil rights from the people's court is three years, counting from the date when the trademark registrant knows or should know about the infringement. If the infringement continues after more than three years, the trademark registrant may still bring a lawsuit to the people's court.

legal ground

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.