Question 1

What is the United States patent renewal fee for year 4?

Accepted Answer

The official United States patent renewal fee for year 4 is $2,150 office fee plus $150 service fee ($2,300 total, shown in USD). The patent office fee is originally $2,150.

Question 2

What is the United States patent renewal fee for year 8?

Accepted Answer

The official United States patent renewal fee for year 8 is $4,040 office fee plus $150 service fee ($4,190 total, shown in USD). The patent office fee is originally $4,040.

Question 3

What is the United States patent renewal fee for year 12?

Accepted Answer

The official United States patent renewal fee for year 12 is $8,280 office fee plus $150 service fee ($8,430 total, shown in USD). The patent office fee is originally $8,280.

Question 4

When are United States patent renewal fees due?

Accepted Answer

United States patent renewal fees are due on the last day of the anniversary month.

Renewal year	Office fee	Service fee	Total
Year 4	$2,150 ($2,150 office)	$150	$2,300
Year 8	$4,040 ($4,040 office)	$150	$4,190
Year 12	$8,280 ($8,280 office)	$150	$8,430

United States patent renewal fees by year