Legal analysis: 1. The first one is that if the registration of a trademark conflicts with a previously registered trademark and causes a big controversy, it usually occurs when two trademarks are used in the same category or in the same category. Identical on similar goods, or between similar trademarks. This type of trademark dispute is stipulated in my country's Trademark Law, which has a dispute period of five years from the date of registration, and the invalidation can also be declared within this dispute period. 2. The second category is that the trademark invalidation is declared because the trademark registration violates my country’s Trademark Law, or the registration applicant adopts other deceptive means, or uses other unfair means to obtain the registered trademark, and thus disputes arise . The so-called violation of trademark law. Registration prohibition regulations mainly refer to the trademark pattern, which does not have distinctive features, or violates public order and good customs in my country. For this type of trademark dispute, there is no time limit for filing a dispute. In other words, there is no time limit for the declaration of invalidity of this kind of trademark, and a request for invalidation of a trademark can be made at any time.
Legal basis: "Trademark Law of the People's Republic of China"
Article 44 A registered trademark violates Articles 4, 10 and 1 of this Law. Article 11, Article 12, Article 19, Paragraph 4, or if the registration is obtained by deception or other unfair means, the Trademark Office shall declare the registered trademark invalid; other units or individuals may request trademark review The Board declared the registered trademark invalid.
Article 45 A registered trademark violates paragraphs 2 and 3 of Article 13, Article 15, Paragraph 1 of Article 16, Article 30, As stipulated in Articles 31 and 32, within five years from the date of trademark registration, the prior right holder or interested party may request the Trademark Review and Adjudication Board to declare the registered trademark invalid