Can the issue fee payment be deferred? Until when?

In Russia: The Grant Fee is paid within 2 months from the date the Decision to Grant is issued. Alternatively, the grant fee can be paid within the 12 month grace period subject to payment an extra fee that is: either 50% of grant and renewals fees if the fees are paid within the first six months; or 100% of grant and renewals fees within the final six months. The patent is issued within 3-4 months from the date when the grant fee is paid.

In Eurasia: The Grant Fee is paid within 4 months from the date the Notification on Readiness to Grant a Patent is issued. Alternatively, the grant fee can be paid within the 2 month grace period subject to payment an extra fee. Also, a restoration is possible within one year from the expiration of the grace period.