First of all, judging from the nature of the licensee’s behavior of selling trademarked goods, the sales behavior is not a direct trademark use behavior. Whether the product sales behavior constitutes infringement should depend on whether the trademark use behavior on the goods sold by the seller Judgment with permission. According to the provisions of Article 48 of my country's Trademark Law, the use of trademarks as mentioned in the Trademark Law refers to the use of trademarks on goods, commodity packaging or containers, and commodity transaction documents, or the use of trademarks in advertising, exhibitions, and Behavior used to identify the source of goods in other commercial activities. As far as product sellers are concerned, their behavior is not to use the trademark on the products, but to purchase the products from the manufacturer that have been affixed with the right holder's trademark and then put them into the market. Therefore, the seller has not implemented the trademark use behavior, and the product sales behavior is only a continuation of the trademark use behavior. Whether the sales behavior constitutes infringement depends on whether the previous trademark use behavior was licensed. If a product manufacturer uses the right holder's trademark on the products it produces without permission, the product will naturally be a product that infringes the trademark right, and the seller's subsequent sales of the infringing product will naturally constitute infringement. On the other hand, if the goods sold by the seller are not infringing goods, the trademark owner has no right to ban them. After the trademark license contract expires, although the licensee sells goods bearing the right holder's trademark, since the goods were legally produced during the duration of the license contract, they are not infringing goods. The licensee's subsequent sales The behavior does not constitute trademark infringement. The above article has introduced some detailed information about registration. When registering a trademark, we must also pass certain procedures for the license, so if anyone continues to ask about the maximum length of time after the trademark license contract expires, How many years will it take us to answer her? The answer is ten years.