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Techniques for Protecting Passive Optical Networks

US 8,855,491 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Oct 7, 2026 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed Dec 29, 2009 as application 12/648,885 · Granted Oct 7, 2014
Base term, 20 years from filing, plus 553 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 7, 2026
2009 2031
Clock starts
Dec 29, 2009
No longer in force
Oct 7, 2026
Granted
Oct 7, 2014
Term would have run to
Jul 5, 2031
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
553
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.

Its term would have run to Jul 5, 2031: its 20-year base term plus 553 days of term adjustment for prosecution delay. 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, 2009, when this application, 12/648,885, was filedDec 29, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+553 days, USPTO patent term adjustment recordJul 5, 2031High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Oct 7, 2026High confidence
Computed term endThe steps above, in orderOct 7, 2026High confidence

This family

US 8,855,491this patent
Oct 2026
Oct 2026
US 8,873,960Grace period ended
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
Dec 29, 2009
Reel 23713, frame 987
Elmoalem, Eli; Dvir, AmiadBroadlight, 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 47230, frame 910
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedMerger
Oct 29, 2018
Reel 47351, frame 384
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedCorrective Assignment to Correct the Effective Date of the Merger Previously Recorded at Reel: 047230 Frame: 0910. Assignor(S) Hereby Confirms the Merger.
Mar 8, 2019
Reel 49248, frame 558
Avago Technologies General IP (Singapore) Pte. Ltd.Avago Technologies International Sales Pte. LimitedCorrective Assignment to Correct the Error in Recording the Merger in the Incorrect US Patent No. 8,876,094 Previously Recorded on Reel 047351 Frame 0384. 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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