Legal analysis: There are many kinds of information about "deemed withdrawal" in the patent register. 1. If the applicant is unwilling to enter the procedure due to time, energy, economy and other reasons, deliberately fails to go through the formalities, and fails to go through the examination and approval procedures within the time limit prescribed by law or designated by the Patent Office without justifiable reasons, his application shall be regarded as withdrawn. 2, the applicant does not understand the law and the examination and approval procedures, resulting in delays in handling procedures; Others postponed the deadline for just reasons. If the applicant fails to go through the examination and approval procedures within the time limit prescribed by law or designated by the Patent Office without justifiable reasons, his application shall be deemed to have been withdrawn.
Legal basis: Article 35 of the Patent Law of People's Republic of China (PRC). Within three years from the date of filing, the administrative department for patent in the State Council may, upon the request of the applicant at any time, make a substantive examination of the application. If the applicant fails to request substantive examination within the time limit without justifiable reasons, the application shall be deemed to have been withdrawn. The patent administrative department of the State Council may, when it deems it necessary, examine the application for a patent for invention on its own.