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US 8,171,531 In force
OverviewFamilyAssignmentsSources & methods

Term ends Dec 28, 2030 · High confidence

Held by NXP B.V.
Filed Nov 15, 2006 as application 11/599,323 · Granted May 1, 2012
Base term plus 1504 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2030
Clock starts
Nov 15, 2006
Term ends
Dec 28, 2030
Granted
May 1, 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
1,504
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.
7
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 1504 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 Nov 15, 2006, when this application, 11/599,323, was filedNov 15, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1504 days, USPTO patent term adjustment recordDec 28, 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 orderDec 28, 2030High confidence

This family

US 8,333,317In force
Mar 2027
Mar 2027
US 8,171,531this patent
Dec 2030
Dec 2030
US 8,572,713In force
no later than Nov 2026
no later than Nov 2026
US 8,806,616Term ended
no later than Sep 2024
no later than Sep 2024
US 8,739,266In force
no later than Nov 2026
no later than Nov 2026
Application 14/285,228Abandoned
not computed
not computed
Application 14/447,131Abandoned
not computed
not computed
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
Nov 15, 2006
Reel 18571, frame 973
Buer, MarkBroadcom CorporationAssignment of Assignor's Interest
Feb 11, 2016
Reel 37806, frame 1
Broadcom CorporationBank of America, N.A., as Collateral AgentPatent Security Agreement
Aug 10, 2016
Reel 39646, frame 92
Bank of America, N.A., as Collateral AgentBroadcom CorporationTermination and Release of Security Interest in Patents
Sep 1, 2016
Reel 39901, frame 237
Broadcom CorporationNXP B.V.Assignment of Assignor's Interest
Feb 3, 2017
Reel 41712, frame 1
Bank of America, N.A., as Collateral AgentBroadcom CorporationTermination and Release of Security Interest in Patents

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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