Hello, to check whether a trademark has expired, you can check it on the China Trademark Network. :9080/tmois/wscxsy_getIndex.xhtml　

Click on the trademark comprehensive query.

What I need to remind you here is that you must handle it in time before the trademark expires. A registered trademark is valid for 10 years. If a registered trademark needs to be continued to be used after it expires, it should apply for renewal within 6 months before expiration. If you fail to apply during this period, there is still a 6-month 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. Therefore, it must be done in time to avoid losing the right to use the trademark.