Legal analysis: 1. The opponent can only object to a trademark that has been initially approved by the Trademark Office and published in the "Trademark Announcement" within the objection period. The opposition period is 3 months, calculated from the date of the preliminary approval announcement of the opposed trademark to the day before the registration announcement. 2. The objection raised by the opponent should have a clear request and factual basis and be supported by corresponding evidence. If the evidence cannot be submitted when filing the objection application, it should be stated in the objection application, and the evidence should be submitted within 3 months from the date of filing the objection application (replenishment can be submitted by mail within 3 months). 3. If the last day of the objection period is a legal holiday, it can be postponed to the first working day after the holiday.

Legal basis: "Trademark Law of the People's Republic of China" Article 19 Anyone can raise objections to a preliminary approved trademark within three months from the date of announcement.