U.S. Gov't Patent Fees
large - small - micro
Patent Filing Fee$800
Each claim over 20$40
Each independent claim over 3$210
Any multiple dependent claim?$390
Extension - 1 month$100
Extension - 2 months$300
Extension - 3 months$700
R.C.E.$600
Noting appeal$400
Issue fee$480
Maintenance 4th year$800
Maintenance 8th year$1800
Maintenance 12th year$3700

Individuals, educational institutions, and organizations having fewer than 500 employees may qualify for small entity status