Trademarks in China are valid for 10 years from the date of registration.
Requests to renew must be filed within 6 months prior dates of expiration.
The Chinese government allows a grace period of 6 months.
Trademarks may be renewed for 10-year-periods (with a signed POA).
If no application has been filed at the expiration the grace period, the registered trademark will be cancelled.
Your trademark may be subject to cancellation if it has NOT been used within the continuous period of 3 years from the date of registration.
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