1. The application time must be within 15 days after receiving the trademark notice rejecting the application and not announcing it;
2. The materials submitted by the applicant are sufficient to prove that its trademark is not similar to others' prior trademarks;
3. Other conditions.
legal ground
Article 34 of the Trademark Law of People's Republic of China (PRC)
The Trademark Office shall notify the applicant for trademark registration in writing of the trademark whose application is rejected or not announced. If the applicant for trademark registration is not satisfied, he may apply to the Trademark Review and Adjudication Board for reexamination within 15 days from the date of receiving the notice. The Trademark Review and Adjudication Board shall make a decision within nine months from the date of receiving the application and notify the applicant in writing. There are special circumstances that need to be extended, which can be extended for three months with the approval of the administrative department for industry and commerce of the State Council. If a party refuses to accept the decision of the Trademark Review and Adjudication Board, he may bring a suit in a people's court within 30 days from the date of receiving the notice.