The Patentee is still allowed to pay the annuity within a 6-month grace period with payment of a late fine calculated based upon the following rates:
for the 1st month: 20% of the official fee payable
for the 2nd month: 40% of the official fee payable
for the 3rd month: 60% of the official fee payable
for the 4th month: 80% of the official fee payable
for the 5th month: 100% of the official fee payable
for the 6th month: 100% of the official fee payable