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Solid State Lighting Panels with Variable Voltage Boost Current Sources

US 8,461,776 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Jun 11, 2025 on the fee record · Medium confidence

Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.

Third maintenance fee unpaid; grace period ended.

Filed May 11, 2012 as application 13/469,188 · Granted Jun 11, 2013
Base term, 20 years from filing
Today
Lapsed Jun 11, 2025
2006 2026
Clock starts
Nov 17, 2006
No longer in force
Jun 11, 2025
Granted
Jun 11, 2013
Term would have run to
Nov 17, 2026
base term 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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
4
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 Nov 17, 2026: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. 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 Nov 17, 2006, when application 11/601,504, the earliest non-provisional in its chain, was filed (this one was filed May 11, 2012)Nov 17, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Jun 11, 2025High confidence
Computed term endThe steps above, in orderJun 11, 2025Medium confidence

This family

US 7,872,430Lapsed on the fee record
Jan 2023
Jan 2023
US 8,203,286Lapsed on the fee record
Jun 2024
Jun 2024
US 8,461,776this patent
Jun 2025
Jun 2025
US 8,941,331In force (reinstated)
Nov 2026
Nov 2026
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
Feb 22, 2017
Reel 41334, frame 131
Roberts, John K.; Vadas, Keith J.; Murugesu, MuhinthanCree, Inc.Assignment of Assignor's Interest
Jul 30, 2019
Reel 49902, frame 679
Cree, Inc.Ideal Industries Lighting LLCAssignment of Assignor's Interest
Mar 30, 2022
Reel 59432, frame 213
Ideal Industries Lighting LLCBrightplus Ventures LLCAssignment of Assignor's Interest

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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