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Light Emitting Device

US 12,084,609 In force
OverviewFamilyAssignmentsSources & methods

Term ends Feb 6, 2029 · Medium confidence

Why Medium: A parent in the chain could not be resolved.

Filed Nov 30, 2023 as application 18/524,247 · Granted Sep 10, 2024
Base term, 20 years from filing
Today
20 years from filing
2009 2029
Clock starts
Feb 6, 2009
Term ends
Feb 6, 2029
Granted
Sep 10, 2024
base term 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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
9
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 is its 20-year base term, with no adjustment for prosecution delay. 0 of 1 maintenance fees are paid so far. 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 Feb 6, 2009, when application PCT/JP2009/052099, the earliest non-provisional in its chain, was filed (this one was filed Nov 30, 2023); a parent in its chain could not be resolved (the next row)Feb 6, 2029High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 1 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 6, 2029Medium confidence

This family

US 8,491,816In force
Aug 2029
Aug 2029
US 9,541,238In force
May 2029
May 2029
US 10,011,769In force
Feb 2029
Feb 2029
US 10,858,582In force
Jan 2030
Jan 2030
US 11,613,698In force
Oct 2029
Oct 2029
US 11,873,435In force
Feb 2029
Feb 2029
US 12,084,609this patent
Feb 2029
Feb 2029
Application 18/783,735Pending
not computed
not computed
8 of 9 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
Jan 9, 2025
Reel 69800, frame 806
Citizen Electronics Co., Ltd.Nichia CorporationAssignment 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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