Legal analysis: It is possible to declare invalidity during trademark objection review, but a lot of relevant evidence needs to be submitted at the same time. Trademark objections are aimed at "trademarks with preliminary approval announcements", that is, only trademarks are still in the "preliminary approval period" At this stage, according to the provisions of the Trademark Law, only trademarks that have no objection after the expiration of the announcement period will be approved for registration.

Legal basis: "Trademark Law of the People's Republic of China" Article 33 For a trademark that has been initially approved and announced, objections can be filed with the Trademark Office within three months from the date of announcement. 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.