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Systems and Methods for Improving Disk Drive Synchronization

US 7,499,238 In force
OverviewAssignmentsSources & methods

Also listed on Broadcom International Pte. Ltd., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Nov 30, 2026 · High confidence

Filed Sep 22, 2006 as application 11/534,265 · Granted Mar 3, 2009
Base term plus 69 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2026
Clock starts
Sep 22, 2006
Term ends
Nov 30, 2026
Granted
Mar 3, 2009
base term patent term adjustment fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
69
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.

This patent's term runs 69 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 Sep 22, 2006, when this application, 11/534,265, was filedSep 22, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+69 days, USPTO patent term adjustment recordNov 30, 2026High 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 orderNov 30, 2026High confidence

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
Sep 22, 2006
Reel 18290, frame 89
Annampedu, ViswanathAgere Systems Inc.Assignment of Assignor's Interest
May 8, 2014
Reel 32856, frame 31
LSI Corporation; Agere Systems LLCDeutsche Bank AG New York Branch, as Collateral AgentPatent Security Agreement
Aug 29, 2014
Reel 33663, frame 948
Agere Systems Inc.Agere Systems LLCCertificate of Conversion
Apr 3, 2015
Reel 35365, frame 634
Agere Systems LLCAvago Technologies General IP (Singapore) Pte. Ltd.Assignment of Assignor's Interest
Feb 2, 2016
Reel 37684, frame 39
Deutsche Bank AG New York Branch, as Collateral AgentLSI Corporation; Agere Systems LLCTermination and Release of Security Interest in Patent Rights (Releases RF 032856-0031)
Feb 2, 2016
reel/frame not recorded
Deutsche Bank AG New York Branch, as Collateral AgentLSI CorporationTermination and Release of Security Interest in Patent Rights (Releases RF 032856-0031)
Feb 2, 2016
reel/frame not recorded
Deutsche Bank AG New York Branch, as Collateral AgentAgere Systems LLCTermination and Release of Security Interest in Patent Rights (Releases RF 032856-0031)
Feb 11, 2016
Reel 37808, frame 1
Avago Technologies General IP (Singapore) Pte. Ltd.Bank of America, N.A., as Collateral AgentPatent Security Agreement
Feb 3, 2017
Reel 41710, frame 1
Bank of America, N.A., as Collateral AgentAvago Technologies General IP (Singapore) Pte. Ltd.Termination and Release of Security Interest in Patents
Oct 4, 2018
Reel 47195, frame 827
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedMerger
Nov 5, 2018
Reel 47924, frame 571
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedCorrective Assignment to Correct the Effective Date of Merger Previously Recorded at Reel: 047195 Frame: 0827. Assignor(S) Hereby Confirms the Merger.
Sep 14, 2020
Reel 53771, frame 901
Avago Technologies International Sales Pte. LimitedBroadcom International Pte. Ltd.Assignment of Assignor's Interest
Mar 3, 2023
Reel 62952, frame 850
Avago Technologies International Sales Pte. Limited; Broadcom International Pte. Ltd.Avago Technologies International Sales Pte. LimitedMerger

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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