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US

System and Method for Fabricating an Optical Isolator

US 7,515,780 In force
OverviewAssignmentsSources & methods

Also listed on Lucent Technologies Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Collateral for a security interest recorded Jan 22, 2025 (JPMorgan Chase Bank, N.A.).

Term ends Nov 25, 2026 · High confidence

Filed Oct 25, 2006 as application 11/586,093 · Granted Apr 7, 2009
Base term plus 31 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2026
Clock starts
Oct 25, 2006
Term ends
Nov 25, 2026
Granted
Apr 7, 2009
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
31
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 31 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 Oct 25, 2006, when this application, 11/586,093, was filedOct 25, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+31 days, USPTO patent term adjustment recordNov 25, 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 25, 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
Oct 25, 2006
Reel 18470, frame 639
Chang, Kok Wai; Legrange, Jane D.Lucent Technologies Inc.Assignment of Assignor's Interest
Feb 12, 2009
Reel 22247, frame 548
Lucent Technologies Inc.Alcatel-Lucent USA Inc.Merger
Apr 1, 2014
Reel 32579, frame 66
LGS Innovations LLCBank of America NASecurity Interest
Apr 23, 2014
Reel 32743, frame 584
Alcatel LucentLGS Innovations LLCAssignment of Assignor's Interest
Jul 19, 2017
Reel 43254, frame 393
LGS Innovations LLCBank Of America, N.a.Notice of Grant of Security Interest in Patents
May 2, 2019
Reel 49074, frame 94
Bank Of America, N.a.LGS Innovations LLCRelease of Security Interest
May 21, 2019
Reel 49247, frame 557
Bank Of America, N.a.LGS Innovations LLCRelease of Security Interest
May 29, 2019
Reel 49312, frame 843
LGS Innovations LLCBank of America, N.A., as Administrative AgentNotice of Grant of Security Interest in Patents
Apr 11, 2022
Reel 59660, frame 301
Alcatel Lucent; Alcatel-Lucent USA Inc.LGS Innovations LLCAssignment of Assignor's Interest
Nov 4, 2024
Reel 69292, frame 770
LGS Innovations LLCCaci LGS Innovations LLCChange of Name
Jan 22, 2025
Reel 69987, frame 444
Caci LGS Innovations LLCJpmorgan Chase Bank, N.a.Notice of Grant of Security Interest in Patents

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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