How long will the reduction of patent fees slow down?

If it is really difficult for the applicant or the patentee to pay the patent fee, he may request a postponement. There are five kinds of fees that can be reduced or exempted: application fee (printing fee and surcharge are not reduced), examination fee for invention patent application, reexamination fee, maintenance fee for invention patent application, and annual fee for three years from the year when the patent right is granted. Other expenses will not be delayed. Where a patent fee is requested to be reduced or exempted, it shall submit a request for fee reduction and exemption, truthfully fill in the economic income status, and attach relevant supporting documents when necessary.