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US 8,122,137 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Mar 20, 2026 · High confidence

Filed Feb 13, 2009 as application 11/574,831 · Granted Feb 21, 2012
Base term plus 558 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Mar 20, 2026
2004 2026
Clock starts
Sep 8, 2004
Term ended
Mar 20, 2026
Granted
Feb 21, 2012
base term patent term adjustment after the term ends 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
558
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.
18
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 558 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Sep 8, 2004, when the earliest non-provisional application in its chain was filed (this one was filed Feb 13, 2009)Sep 8, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+558 days, USPTO patent term adjustment recordMar 20, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderMar 20, 2026High confidence

This family

US 7,899,862In force
Feb 2027
Feb 2027
US 7,653,693In force
Nov 2026
Nov 2026
Application PCT/US2004/023382PCT application
no patent term
no patent term
Application PCT/US2004/029291PCT application
no patent term
no patent term
US 8,122,137this patent
Mar 2026
Mar 2026
US 8,577,972Term ended
Apr 2024
Apr 2024
US 9,647,872Term ended
Apr 2025
Apr 2025
US 9,621,376Term ended
Nov 2023
Nov 2023
8 of 18 applications in this family shown, earliest filings first. 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
May 15, 2007
Reel 19296, frame 698
Appelman, Barry; Erickson, Andrew Ivar; Lu, Larry L.; Weltman, Robert EugeneAOL LLCAssignment of Assignor's Interest
Dec 14, 2009
Reel 23649, frame 61
AOL Inc.; AOL Advertising Inc.; Bebo, Inc.; Icq LLC; Going, Inc.; Lightningcast LLC; Mapquest, Inc.; Netscape Communications Corporation; Quigo Technologies LLC; Sphere Source, Inc.; Tacoda LLC; Truveo, Inc.; Yedda, Inc.Bank of American, N.A. as Collateral AgentSecurity Agreement
Dec 31, 2009
Reel 23720, frame 309
AOL LLCAOL Inc.Assignment of Assignor's Interest
Nov 16, 2010
Reel 25323, frame 416
Bank Of America, N AAOL Inc.; AOL Advertising Inc.; Going Inc.; Lightningcast LLC; Mapquest, Inc.; Netscape Communications Corporation; Quigo Technologies LLC; Sphere Source, Inc.; Tacoda LLC; Truveo, Inc.; Yedda, Inc.Termination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N AAOL Inc.Termination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N AAOL Advertising Inc.Termination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N AGoing Inc.Termination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N ALightningcast LLCTermination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N AMapquest, Inc.Termination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N ANetscape Communications CorporationTermination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N AQuigo Technologies LLCTermination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N ASphere Source, Inc.Termination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N ATacoda LLCTermination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N ATruveo, Inc.Termination and Release of Security Interest in Patent Rights
Nov 16, 2010
reel/frame not recorded
Bank Of America, N AYedda, Inc.Termination and Release of Security Interest in Patent Rights
Jul 3, 2012
Reel 28487, frame 304
AOL Inc.Facebook, Inc.Assignment of Assignor's Interest
Dec 20, 2021
Reel 58961, frame 436
Facebook, Inc.Meta Platforms, Inc.Change of Name

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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