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US

Enhanced Position Measurement Systems and Methods

US 9,182,229 In force
OverviewFamilyAssignmentsSources & methods

Term ends Aug 7, 2034 · High confidence

Filed Dec 21, 2011 as application 13/332,648 · Granted Nov 10, 2015
Base term plus 960 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2011 2034
Clock starts
Dec 21, 2011
Term ends
Aug 7, 2034
Granted
Nov 10, 2015
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
960
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
6
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 960 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are 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 Dec 21, 2011, when this application, 13/332,648, was filedDec 21, 2031High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+960 days, USPTO patent term adjustment recordAug 7, 2034High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 7, 2034High confidence

This family

US 9,182,229this patent
Aug 2034
Aug 2034
Application PCT/US2011/066839PCT application
no patent term
no patent term
Application PCT/US2013/062679PCT application
no patent term
no patent term
Application PCT/US2013/062674PCT application
no patent term
no patent term
US 9,879,993In force
Dec 2032
Dec 2032
US 10,168,153In force
Jul 2033
Jul 2033
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
Feb 8, 2012
Reel 27672, frame 228
Grasser, Christian; Kistler, Peter Cornelius; Greenberg, James; Johnson, Rod; Westermark, MagnusTrimble Navigation LimitedAssignment 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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