It generally takes nine months to declare a trademark invalid. If another unit or individual requests the Trademark Review and Adjudication Board to declare a trademark invalid, the Trademark Review and Adjudication Board shall make a ruling within nine months from the date of receipt of the application. In special circumstances, it can be extended for three months.

Legal Basis

Article 44 of the Trademark Law of the People's Republic of China

A registered trademark violates Article 4 of this Law , Article 10, Article 11, Article 12, Article 19, Paragraph 4, or if the registration is obtained by deception or other improper means, the Trademark Office shall declare the registered trademark invalid; other units Or an individual can request the Trademark Review and Adjudication Board to declare the registered trademark invalid.

If other units or individuals request the Trademark Review and Adjudication Board to declare a registered trademark invalid, the Trademark Review and Adjudication Board shall, after receiving the application, notify the relevant parties in writing and file a reply within a time limit. The Trademark Review and Adjudication Board shall make a ruling to maintain the registered trademark or declare the registered trademark invalid within nine months from the date of receipt of the application, and notify the parties in writing. If there are special circumstances that require an extension, it can be extended for three months with the approval of the industrial and commercial administration department of the State Council.