Article 41 of the Trademark Law stipulates that if a registered trademark needs to change the name, address or other registered items of the registrant, an application for change shall be filed.
Second, the following three provisions stipulate that the Trademark Office will send the relevant documents to the trademark owner, and the trademark will be invalid if it is not handled in time.
Article 44 Where a registered trademark violates the provisions of Articles 10, 11 and 12 of this Law, or is registered by deception or other improper means, the Trademark Office shall declare the registered trademark invalid; Other units or individuals may request the Trademark Review and Adjudication Board to declare the registered trademark invalid.
Article 45 Where a registered trademark violates the provisions of Article 13, paragraphs 2 and 3, Article 15, Article 16, paragraph 1, Article 30, Article 31 and Article 32 of this Law, within five years from the date of trademark registration, the prior obligee or interested party may request the Trademark Review and Adjudication Board to declare the registered trademark invalid. For malicious registration, the owner of a well-known trademark is not limited by five years.
Paragraph 2 of Article 49: If a registered trademark becomes the common name of a commodity approved for use by it, or it is not used for three consecutive years without justifiable reasons, any unit or individual may apply to the Trademark Office for cancellation of the registered trademark.