As per Circular no. 6 of 2016, it is possible to pay the trademark renewal fees without a surcharge until the last day of the protection period. In the past the last day to pay the renewal fees without a surcharge was the first day of the renewal period.
Late payment of renewal fees is provided for during a six-month grace period subject to payment of a surcharge. Renewal fees can be paid 12 months before the renewal due date without shortening the protection period.
Should you have any questions, or require any additional information, please contact us at firstname.lastname@example.org