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Navigation Systems and Methods for Wheeled Objects

US 8,751,148 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Oct 25, 2019 (BMO Harris Bank, N.A.).

Term ends Dec 17, 2026 · High confidence

Filed Aug 12, 2011 as application 13/209,219 · Granted Jun 10, 2014
Base term plus 272 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2026
Clock starts
Mar 20, 2006
Term ends
Dec 17, 2026
Granted
Jun 10, 2014
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
272
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
5
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 272 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Mar 20, 2006, when application 11/277,027, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2011)Mar 20, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+272 days, USPTO patent term adjustment recordDec 17, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderDec 17, 2026High confidence

This family

US 8,046,160In force
Jun 2027
Jun 2027
US 8,751,148this patent
Dec 2026
Dec 2026
US 9,630,639Term ended
Oct 2026
Oct 2026
US 10,730,541Term ended
Mar 2026
Mar 2026
US 11,718,336In force
Jun 2027
Jun 2027
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 19, 2016
Reel 39775, frame 741
Gatekeeper Systems, Inc.First Merchants BankSecurity Interest
Mar 15, 2017
Reel 41586, frame 897
Carter, Scott J.; Hannah, Stephen E.; James, Jesse M.Gatekeeper Systems, Inc.Assignment of Assignor's Interest
Oct 25, 2019
Reel 50831, frame 585
First Merchants BankGatekeeper Systems, Inc.; Carttronics LLCRelease of Patent Security Interests Recorded at Reel 039775, Frame 0741 and Reel 041428, Frame 0259
Oct 25, 2019
Reel 50890, frame 411
Gatekeeper Systems, Inc.; Carttronics LLCBmo Harris Bank, N.a.Grant of Security Interest - Patents
Oct 25, 2019
reel/frame not recorded
First Merchants BankGatekeeper Systems, Inc.Release of Patent Security Interests Recorded at Reel 039775, Frame 0741 and Reel 041428, Frame 0259
Oct 25, 2019
reel/frame not recorded
First Merchants BankCarttronics LLCRelease of Patent Security Interests Recorded at Reel 039775, Frame 0741 and Reel 041428, Frame 0259
Aug 29, 2024
Reel 68807, frame 362
Carttronics LLC; Gatekeeper Systems, Inc.Wilmington Trust, National Association, as Administrative AgentSecurity Interest
Aug 30, 2024
Reel 68822, frame 838
BMO Bank N.A. (F/K/A BMO Harris Bank N.A.)Gatekeeper Systems, Inc.; Carttronics LLCRelease of Security Interest
Aug 30, 2024
reel/frame not recorded
BMO Bank N.A. (F/K/A BMO Harris Bank N.A.)Gatekeeper Systems, Inc.Release of Security Interest
Aug 30, 2024
reel/frame not recorded
BMO Bank N.A. (F/K/A BMO Harris Bank N.A.)Carttronics LLCRelease of Security 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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