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Watercraft Device with Hydrofoil and Electric Propeller System

US 11,479,324 In force
OverviewFamilySources & methods

Term ends Oct 23, 2037 · Medium confidence

Why Medium: A parent in the chain could not be resolved.

Filed Sep 3, 2020 as application 17/012,011 · Granted Oct 25, 2022
Base term plus 42 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2017 2037
Clock starts
Sep 11, 2017
Term ends
Oct 23, 2037
Granted
Oct 25, 2022
base term patent term adjustment fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
42
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
8
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 42 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: Medium. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Sep 11, 2017, when application 15/700,658, the earliest non-provisional in its chain, was filed (this one was filed Sep 3, 2020); a parent in its chain could not be resolved (the next row)Sep 11, 2037High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+42 days, USPTO patent term adjustment recordOct 23, 2037High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 23, 2037Medium confidence

This family

US 10,597,118In force
Sep 2037
Sep 2037
Application PCT/US2018/023959PCT application
no patent term
no patent term
US 10,940,917In force
Sep 2037
Sep 2037
US 11,479,324this patent
Oct 2037
Oct 2037
US 11,919,608In force
Jan 2038
Jan 2038
US 12,122,481In force
Sep 2038
Sep 2038
US 12,103,643In force
Jan 2038
Jan 2038
US 12,509,186In force
Sep 2037
Sep 2037
The applications whose file history this site holds. The family may have others.

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited