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US 8,250,657 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Sep 13, 2022 (Bank of America, N.A.).

Term ends Sep 27, 2029 · High confidence

Filed Mar 28, 2007 as application 11/692,469 · Granted Aug 21, 2012
Base term plus 1003 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2029
Clock starts
Dec 29, 2006
Term ends
Sep 27, 2029
Granted
Aug 21, 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
1,003
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,019,689, US 8,312,536, to Sep 27, 2029. The term already ends on or before that date, so the cap shortened nothing.
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.
4
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 1003 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Dec 29, 2006, when application 11/618,215, the earliest non-provisional in its chain, was filed (this one was filed Mar 28, 2007)Dec 29, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1003 days, USPTO patent term adjustment recordSep 27, 2029High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,019,689, US 8,312,536)resolves to Sep 27, 2029, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderSep 27, 2029High confidence

This family

US 8,312,536In force
Jan 2031
Jan 2031
US 8,250,657this patent
Sep 2029
Sep 2029
US 8,650,647In force
Dec 2026
Dec 2026
US 9,262,638In force
Dec 2026
Dec 2026
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 28, 2007
Reel 19079, frame 216
Nachenberg, Carey S.; Spertus, Michael P.Symantec CorporationAssignment of Assignor's Interest
Nov 4, 2019
Reel 50926, frame 560
Symantec Corporation; Blue Coat LLC; Lifelock, Inc.,; Symantec Operating CorporationJpmorgan, N.a.Security Agreement
Nov 21, 2019
Reel 51144, frame 918
Symantec CorporationCA, Inc.Assignment of Assignor's Interest
Jun 18, 2020
Reel 53306, frame 878
Symantec CorporationNortonlifelock Inc.Change of Name
Sep 13, 2022
Reel 61422, frame 371
Jpmorgan Chase Bank, N.a.Bank of America, N.A., as Collateral AgentNotice of Succession of Agency (REEL 050926 / Frame 0560)
Sep 13, 2022
Reel 62220, frame 1
Nortonlifelock Inc.Bank of America, N.A., as Collateral AgentSecurity Agreement

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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