Enter your patent issue date to instantly calculate all three USPTO maintenance fee windows — payment opens, surcharge dates, and hard deadlines — across every entity size. Weekend rollover applied.
Maintenance Fees · Deadline Calculator
USPTO Utility Patent Fee Schedule
Standard USPTO fees — no discount
Maintenance fees apply to Utility Patents only — calculated strictly from the issue date
Total Estimated Lifetime Maintenance Cost
$0
Large Entity
3.5 Year Window
First Maintenance Fee
$0
+ $0 surcharge if late
Window Opens
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Surcharge Begins
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Hard Deadline
--
7.5 Year Window
Second Maintenance Fee
$0
+ $0 surcharge if late
Window Opens
--
Surcharge Begins
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Hard Deadline
--
11.5 Year Window
Third Maintenance Fee
$0
+ $0 surcharge if late
Window Opens
--
Surcharge Begins
--
Hard Deadline
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Weekend rollover applied automatically — hard deadlines falling on Saturday or Sunday roll to the following Monday. Federal holidays are not calculated. Fees reflect the official 2026 USPTO fee schedule and are subject to change. Consult a registered patent attorney for binding docketing and payments.