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US 8,126,521 In force
OverviewFamilyAssignmentsSources & methods

Term ends May 16, 2030 · High confidence

Filed Feb 27, 2009 as application 12/394,238 · Granted Feb 28, 2012
Base term plus 443 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2009 2030
Clock starts
Feb 27, 2009
Term ends
May 16, 2030
Granted
Feb 28, 2012
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
443
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.
2
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 443 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 Feb 27, 2009, when this application, 12/394,238, was filedFeb 27, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+443 days, USPTO patent term adjustment recordMay 16, 2030High 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 orderMay 16, 2030High confidence

This family

US 8,126,521this patent
May 2030
May 2030
US 8,630,686In force
May 2030
May 2030
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
Mar 23, 2011
Reel 26006, frame 61
Allwright, Julia; Riddiford, MartinTherefore LimitedAssignment of Assignor's Interest
Mar 23, 2011
Reel 26006, frame 91
Therefore LimitedResearch in Motion LimitedAssignment of Assignor's Interest
Mar 23, 2011
Reel 26008, frame 392
Griffin, JasonResearch in Motion LimitedAssignment of Assignor's Interest
Oct 16, 2014
Reel 34012, frame 111
Research in Motion LimitedBlackBerry LimitedChange of Name
Jun 16, 2023
Reel 64104, frame 103
BlackBerry LimitedMalikie Innovations LimitedAssignment of Assignor's Interest
Jun 19, 2023
Reel 64270, frame 1
BlackBerry LimitedMalikie Innovations LimitedNunc Pro Tunc Assignment

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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