Turn a US patent grant date into the three USPTO fee windows, the 2026 amounts, and the cost of missing each one
| Stage in play | — | |
|---|---|---|
| Window opens | — | date |
| Due with no surcharge | — | date |
| Grace ends, patent expires | — | date |
| Days to the no-surcharge date | — | days |
| Fee inside the window | — | USD |
| Fee plus grace surcharge | — | USD |
| Cost to revive after expiry | — | USD |
| Docket total payable now | — | USD |
| Where you stand | — |
This page is the working piece. The full pack has everything below.
Turn a US patent grant date into the three USPTO fee windows, the 2026 amounts, and the cost of missing each one
Getting it wrong is priced by the USPTO itself: a 540 late surcharge inside the six-month grace window, then a 2260 petition fee when the delay is one year or less and 3000 when it is longer (37 CFR 1.17(m), fee schedule revised 2
Buy the full version — $60You give it a US utility patent grant date, the date you are checking from, the entity status you will claim, whether that status changed, and how many patents sit at the same stage. Five inputs produce ten outputs: the stage in play, three dates, days remaining, three dollar figures, a docket total, and a plain sentence saying where you stand.
US solo inventors and startup founders who pay their own maintenance fees, and paralegals at small IP firms who docket them in a spreadsheet. It is built for people without an annuity service, who learn the window closed only when the USPTO notice of expiration arrives months later.
Language models still quote the pre-2022 fifty percent small-entity discount instead of sixty percent, and a single flat petition fee instead of the two tiers. A generic date calculator has no fee table at all. This checker carries the schedule effective 2025-01-19 and revised 2026-08-14.
Every calculation is free and unlimited: all three stages, all 2026 amounts, the grace surcharge, and the revival cost. Nothing is blurred or capped. The twenty-nine dollar key adds two different things: a CSV export of the whole docket that you keep, and browser alarms at ninety, thirty and seven days.
Inside the six-month grace window a large entity pays a 540 surcharge. After that the patent is expired and only a 37 CFR 1.378 petition revives it, at 2260 when the delay is one year or less and 3000 when it is longer, on top of the fee itself. Small and micro entities pay those at 40 and 20 percent.
One question, answered by the person who built it. Your email only if you want the answer sent.