Patent description is a very important content when applying for a patent. Patent description includes information about the patent inventor, patent applicant and patentee. Patent description can be applied for changes, and a fee must be paid. Change costs, how long does it take to change a patent bibliography item? Below, the editor will provide answers to relevant knowledge for readers. How long does it take to change patent bibliographic items? How long does it take to change patent bibliographic items? According to the provisions of the Implementing Rules of the Patent Law, if the applicant applies for changes to the patent description, the time for the change of the patent description is generally about one month. Relevant laws stipulate that Article 99 of the "Regulations for the Implementation of the Patent Law of the People's Republic of China" shall pay the request fee for restoration of rights within the relevant time limit specified in these rules; if it is not paid by the time limit or is not paid in full, it shall be deemed that it has not been filed. ask. The request fee for extension of time limit shall be paid before the expiration date of the corresponding time limit; if it is not paid upon expiration or is not paid in full, the request shall be deemed not to have been made. The fee for change of bibliographic matters, request fee for patent right evaluation report, and request fee for invalidation declaration shall be paid within one month from the date of filing the request; if the fee is not paid upon expiration or is not paid in full, the request shall be deemed not to have been made.