The blind period refers to the period after the Trademark Office accepts the application for a trademark. Due to the large number of trademark applications, it takes 3-6 months from the time the trademark registration application is submitted to the time it is entered into the Trademark Office system. This period is a vacuum period; During the trademark blind period, many trademarks are not entered into the database, so no one can query trademark information. In other words, if the applicant wants to apply for a trademark, he cannot avoid the risk of the blind period of trademark search.