Why it is necessary to change trademark information in a timely manner. If someone else applies to stop using your company's trademark for three years and files a cancellation application for your company's trademark, all relevant trademark documents from the Trademark Office will be mailed to the address on the trademark registration certificate. To your company, if you fail to apply to the Trademark Office to change your name or address in time, the documents from the Trademark Office will not be delivered to your company, and your company's trademark may be revoked (there are precedents of trademarks being revoked for this reason). Article 23 of the Trademark Law stipulates: If a registered trademark needs to change the name, address or other registration matters of the registrant, a change application must be submitted. Article 24 of the "Regulations for the Implementation of the Trademark Law" stipulates: If the name, address or other registration matters of the trademark registrant are changed, a change application must be submitted to the Trademark Office. After approval, the Trademark Office will issue corresponding certificates to the trademark registrant and make an announcement; if it disapproves, it shall notify the applicant in writing and explain the reasons. According to Article 17 of the "Regulations for the Implementation of the Trademark Law": "If the applicant changes its name, address, agent, document recipient, or deletes the designated goods, it shall go through the change procedures with the Trademark Office." Article 30 stipulates : "If the name, address or other registration matters of the trademark registrant are changed, a change application shall be submitted to the Trademark Office. If the name or address of the trademark registrant is changed, the trademark registrant shall change all registered trademarks at the same time. " (2) Article 41 of the "Trademark Law" stipulates: "If a registered trademark needs to change the name, address or other registration matters of the registrant, an application for change shall be submitted." Article 49 of the "Trademark Law" stipulates: "The trademark registrant shall In the process of using a registered trademark, if you change the registered trademark, the name of the registrant, the address or other registration matters on your own, the local industrial and commercial administration department will order you to make corrections within a time limit; if you do not make corrections within the time limit, the Trademark Office will cancel the registered trademark information. If you want to make a change, you must go to the Industrial and Commercial Bureau to complete the change procedure. Otherwise, it may be revoked or cancelled. This will make you pessimistic. Trademarks are particularly important for enterprises. Some companies are not as famous as their own trademarks. There is a certain time limit. If the time is up, you must go to the Trademark Office in advance to renew it.