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US

Aircraft Having Reverse Thrust Capabilities

US 11,597,508 In force
OverviewFamilyAssignmentsSources & methods

Term ends May 13, 2041 · High confidence

Filed May 13, 2021 as application 17/319,155 · Granted Mar 7, 2023
Base term, 20 years from filing
Today
20 years from filing
2021 2041
Clock starts
May 13, 2021
Term ends
May 13, 2041
Granted
Mar 7, 2023
base term 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
None
Term adjustment
No prosecution delay on this record.
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.
18
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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: High. 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 May 13, 2021, when this application, 17/319,155, was filedMay 13, 2041High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh 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 orderMay 13, 2041High confidence

This family

Application 16/599,538Abandoned
not computed
not computed
US 11,592,841In force
Feb 2040
Feb 2040
Application PCT/US2020/019969PCT application
no patent term
no patent term
US 11,584,541In force
Jan 2040
Jan 2040
Application PCT/US2020/063598PCT application
no patent term
no patent term
US 11,597,508this patent
May 2041
May 2041
US 11,964,780In force
Dec 2039
Dec 2039
US 12,017,784In force
no later than Jun 2040
no later than Jun 2040
8 of 18 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Sep 29, 2021
Reel 57636, frame 844
Wiegman, Herman Lucas Norbert; Griffin, Riley Clinton; Wiegman, Nathan William Joseph; Ferrier, LochieBeta Air, LLCAssignment of Assignor's Interest

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.

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