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Techniques for Detecting Optical Faults in Passive Optical Networks

US 8,873,960 Grace period ended
OverviewFamilyAssignmentsSources & methods

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

Term ends May 15, 2031 · Low confidence

Grace period ended Oct 28, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected

Filed Jul 25, 2011 as application 13/189,935 · Granted Oct 28, 2014
Base term plus 502 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2009 2031
Clock starts
Dec 29, 2009
Term ends
May 15, 2031
Granted
Oct 28, 2014
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
502
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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 502 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Low: the grace period for its third maintenance fee ended Oct 28, 2026 with no payment on record. 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, 2009, when application 12/648,885, the earliest non-provisional in its chain, was filed (this one was filed Jul 25, 2011)Dec 29, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+502 days, USPTO patent term adjustment recordMay 15, 2031High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee eventsNo fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case"; the grace period ended with no payment on record in the fee filegrace period ended Oct 28, 2026Low confidence
Computed term endThe steps above, in orderMay 15, 2031Low confidence

This family

US 8,855,491Lapsed on the fee record
Oct 2026
Oct 2026
US 8,873,960this patent
May 2031
May 2031
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
Jul 25, 2011
Reel 26645, frame 342
Dvir, Amiad; Elmoalem, EliBroadlight, Ltd.Assignment of Assignor's Interest
Nov 7, 2012
Reel 29256, frame 895
Broadcom Broadband Acess Ltd.Broadcom International LimitedAssignment of Assignor's Interest
Nov 7, 2012
Reel 29256, frame 939
Broadcom International LimitedBroadcom CorporationAssignment of Assignor's Interest
Nov 7, 2012
Reel 29259, frame 975
Broadlight Ltd.Broadcom Broadband Access Ltd.Change of Name
Feb 11, 2016
Reel 37806, frame 1
Broadcom CorporationBank of America, N.A., as Collateral AgentPatent Security Agreement
Feb 1, 2017
Reel 41706, frame 1
Broadcom CorporationAvago Technologies General IP (Singapore) Pte. Ltd.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
Oct 4, 2018
Reel 47229, frame 408
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedMerger
Oct 29, 2018
Reel 47349, frame 1
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedCorrective Assignment to Correct the Effective Date Previously Recorded on Reel 047229 Frame 0408. Assignor(S) Hereby Confirms the the Effective Date Is 09/05/2018.
Mar 22, 2019
Reel 51144, frame 648
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedCorrective Assignment to Correct the Patent Number 9,385,856 to 9,385,756 Previously Recorded at Reel: 47349 Frame: 001. Assignor(S) Hereby Confirms the Merger.

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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