Hello, a registered trademark is valid for 10 years. If a registered trademark needs to be continued to be used after it expires, an application for renewal should be submitted within one year before expiration. If you fail to apply during this period, there is still a 6-month extension period, but a fee will be charged for the extension period. If an application has not been filed within the extension period, the Trademark Office will cancel it after the expiration of the extension period. To apply for renewal of a registered trademark, you can entrust a nationally recognized trademark agency to handle it.

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