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US

Lighting Device and Lighting Method

US 8,513,875 In force
OverviewFamilyAssignmentsSources & methods

Term ends Feb 2, 2031 · High confidence

Filed Apr 18, 2007 as application 11/736,761 · Granted Aug 20, 2013
Base term plus 1386 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2007 2031
Clock starts
Apr 18, 2007
Term ends
Feb 2, 2031
Granted
Aug 20, 2013
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
1,386
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.
15
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 1386 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 Apr 18, 2007, when this application, 11/736,761, was filedApr 18, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1386 days, USPTO patent term adjustment recordFeb 2, 2031High 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 orderFeb 2, 2031High confidence

This family

US 7,213,940In force
Dec 2026
Dec 2026
Application PCT/US2007/009462PCT application
no patent term
no patent term
US 8,513,875this patent
Feb 2031
Feb 2031
Application PCT/US2007/086027PCT application
no patent term
no patent term
US 9,084,328In force
Dec 2026
Dec 2026
US 9,441,793In force
Dec 2026
Dec 2026
US 8,998,444In force
Jul 2030
Jul 2030
US 7,821,194In force
Apr 2027
Apr 2027
8 of 15 applications in this family shown, earliest filings first. 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 27, 2007
Reel 19616, frame 463
Van De Ven, Antony Paul; Negley, Gerald H.Led Lighting Fixtures, Inc.Assignment of Assignor's Interest
Apr 4, 2008
Reel 20758, frame 137
Led Lighting Fixtures, Inc.Cree Led Lighting Solutions, Inc.Merger
Oct 14, 2010
Reel 25126, frame 955
Cree Led Lighting Solutions, Inc.Cree, Inc.Merger
Aug 1, 2019
Reel 49927, frame 473
Cree, Inc.Ideal Industries Lighting LLCAssignment of Assignor's Interest
Sep 13, 2023
Reel 64897, frame 413
Ideal Industries Lighting LLCFGI Worldwide LLCSecurity Interest
May 16, 2026
Reel 76279, frame 340
Clna Holdings, LLC; Cree Lighting USA LLC; Cree Lighting Canada Corp.; E-Conolight LLCLumen Acquisition Holdings, LLCAssignment of Assignor's Interest
May 22, 2026
Reel 75624, frame 358
Lumen Acquisition Holdings, LLCLed-IP Management, 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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