The initial review announcement period is 3 months. The preliminary review announcement of a trademark means that if the trademark registration application meets the relevant provisions of the Trademark Law after review, it will be allowed to register the trademark. And be announced in the "Trademark Announcement". If no one raises objections to a trademark subject to preliminary examination within three months from the date of publication of the preliminary examination announcement, the trademark will be registered and a registration announcement will be published at the same time. If no one raises an objection within three months or if the objection raised is found to be untenable, the trademark will be registered and take effect, and a registration certificate will be issued.