Deferred payment of patent fees

After the patent application is authorized, the patent applicant shall pay the annual fee of the year when the patent right is granted in addition to the patent registration fee when going through the registration formalities. And will renew the annual fee for the next year one month before the expiration of the previous year. Sometimes I forget to pay the annual fee for various reasons. In that case, can I return it? Do you need any other handling fees if you return it? For this problem, Bian Xiao, a wise master, made the following analysis: I forgot to pay the annual patent fee. Do I need to pay the handling fee for this? If I fail to pay within the specified time or the amount paid is insufficient, I can pay it back within 6 months from the due date of the annual fee. At the same time, you need to pay a late fee, otherwise you will lose your patent right! The amount of overdue fine is calculated as follows:1; If the time limit exceeds 1 day to 1 month (including 1 whole month), only the annual fee is required, and no late fee is required; 2. If the overdue payment exceeds 1 month to 2 months (including 2 whole months), the amount of overdue payment shall be 5% of the full annual fee; 3. If the overdue period is more than 2 months to 3 months (including 3 whole months), the amount of overdue fine to be paid is10% of the total annual fee; 4. If the overdue period is more than 3 months to 4 months (including 4 whole months), the amount of overdue fine to be paid is 65438+ 05% of the annual fee; 5 overdue for more than 4 months to 5 months (including 5 whole months), the amount of overdue payment shall be 20% of the annual expenses; 6 overdue for more than 5 months to 6 months (including 6 whole months), the amount of overdue fine payable is 25% of the annual expenses.