Expenses for requesting an extension of the time limit: If a party fails to implement or complete an act or procedure within the time limit due to justifiable reasons, it may request an extension of the time limit. The time limit for requesting extension is limited to the specified time limit, excluding the time limit specified by the Patent Reexamination Board in the procedure for invalidation. The statutory time limit stipulated in the Patent Law and the Detailed Rules for the Implementation of the Patent Law shall not be extended. Justifiable reasons shall be stated in the request for extension of the time limit, and the fee for extension of the time limit shall be submitted and paid in writing before the expiration of the time limit, and the fee for extension of the time limit shall be calculated on a monthly basis. If the extension period is less than 1 month, it shall be calculated as 1 month. The extension period shall not exceed 2 months. Under normal circumstances, the time limit stipulated in the same notice or decision can only be extended once. The extension request shall be examined and approved by the department or process management department that made the corresponding notice and decision. Upon examination, if the request for extending the time limit does not meet the requirements, the examiner shall issue a notice agreeing to extend the time limit and explain the reasons for not extending the time limit; In line with the provisions, the examiner shall issue a notice of extension of the examination and approval period, and re-determine the expiration date of the period. The time limit for payment of the extension request fee is before the expiration of the original time limit. The fee for the first extension request is 300 yuan per month, and the fee for the second extension request is 2000 yuan per month. For example, it is required to extend the reply period of the first review notice 1 month and pay the request fee of 300 yuan; If it's two months, it's 600 yuan.
Application maintenance fee: if the applicant for a patent for invention has not been granted a patent right for two years from the date of application, the application maintenance fee shall be paid from the third year. When the applicant goes through the registration formalities, he shall pay the patent registration fee, the announcement printing fee and the annual fee for the year when the patent right is granted. The applicant for a patent for invention shall pay the application maintenance fee every year, excluding the year when the patent right is granted. If the payment is not made at the expiration of the period, it shall be deemed that the registration formalities have not been completed.
The annual fee is the annual fee that needs to be paid to maintain the validity of the patent right after the patent is granted, which increases year by year. The invention patent is the highest, followed by utility model, and the design is the lowest.