An Application for the Reduction or Postponement of the Payment of Patent Fees shall be affixed with the signatures or seals of all applicants or patent owners.

• 申请人或者专利权人只能就尚未到期的费用请求减缓缴纳，并且应当在有关费用缴纳期限届满日的二个半月之前提出费用减缓请求。