Legal analysis: The opposition period for trademark announcement is three months. Anyone who believes that a trademark initially determined by the Trademark Office to be announced is not legal must submit an opinion to the Trademark Office within 3 months from the date of announcement that the trademark should not be registered. The purpose of the trademark opposition system is to confirm trademark rights fairly and openly and improve the quality of trademark registration review.

Legal basis: "Trademark Law of the People's Republic of China" Article 33 For a trademark that has been initially approved and announced, within three months from the date of announcement, the prior rights holder and interested parties shall A person believes that the provisions of paragraphs 2 and 3 of Article 13 and Article 15; Paragraph 1 of Article 16, Article 30, Article 31 and Article 32 of this Law have been violated, or Anyone who believes that the provisions of Article 4, Article 10, Article 11, Article 12 and Article 19, paragraph 4, of this Law have been violated may file an objection with the Trademark Office. If there is no objection at the expiration of the announcement period, the registration will be approved, a trademark registration certificate will be issued, and the announcement will be made.