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 11.5 years after the date of issue for the third and final maintenance fee payment Chapter Details: The answer to this question can be found in chapter 2500 of the MPEP. This chapter covers Maintenance Fees. The answer is from the 9th Edition, Revision 07.2015. Depending…
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