If the applicant wants to receive the certificate as soon as possible, he can pay the fee immediately after receiving the registration notice. The authorization system of the Patent Office queues up to issue certificates according to the date of issuance of the registration notice and the payment time of the payer. The publishing house prints the patent specification according to the issuance data of the authorization bureau, and the printing time is internationally stipulated as 2 months.
So you will usually receive the patent certificate within 2 months from the date of payment.