Question: What are the due dates for paying the maintenance fee without a surcharge? Answer: Due dates for paying without a surcharge are as follows: 3 to 3.5 years after date of issue for first maintenance fee payment 7 to 7.5 years after the date of issue for the second maintenance fee payment 11 to […]

The post MPEP Q & A 52: Due Dates for Paying the Maintenance Fee Without a Surcharge appeared first on Patent Education Series.