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Systems for Providing Tunable White Light with High Color Rendering

US 9,609,715 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Mar 28, 2025 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Held by Korrus, Inc.
Filed Jun 3, 2016 as application 15/173,554 · Granted Mar 28, 2017
Base term, 20 years from filing
Today
Lapsed Mar 28, 2025
2016 2036
Clock starts
Jan 28, 2016
No longer in force
Mar 28, 2025
Granted
Mar 28, 2017
Term would have run to
Jan 28, 2036
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.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
86
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 Jan 28, 2036: its 20-year base term, with no 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 Jan 28, 2016, when application PCT/US2016/015368, the earliest non-provisional in its chain, was filed (this one was filed Jun 3, 2016)Jan 28, 2036High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Mar 28, 2025High confidence
Computed term endThe steps above, in orderMar 28, 2025High confidence

This family

Application PCT/US2016/015402PCT application
no patent term
no patent term
Application PCT/US2016/015385PCT application
no patent term
no patent term
Application PCT/US2016/015318PCT application
no patent term
no patent term
Application PCT/US2016/015368PCT application
no patent term
no patent term
Application PCT/US2016/015441PCT application
no patent term
no patent term
Application PCT/US2016/015348PCT application
no patent term
no patent term
US 9,609,715this patent
Mar 2025
Mar 2025
US 9,526,143In force
Jan 2036
Jan 2036
8 of 86 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
Aug 31, 2016
Reel 39605, frame 439
Petluri, Raghuram L. V.; Pickard, Paul KennethEcosense Lighting Inc.Assignment of Assignor's Interest
Feb 21, 2022
Reel 59239, frame 614
Ecosense Lighting Inc.Korrus, Inc.Nunc Pro Tunc Assignment

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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