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Smart Dimming & Sensor Failure Detection as Part of Built in Daylight Harvesting Inside the Luminaire

US 11,343,898 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed May 24, 2026 on the fee record · High confidence

First maintenance fee unpaid; grace period ended.

Filed Feb 10, 2020 as application 16/786,213 · Granted May 24, 2022
Base term, 20 years from filing
Today
Lapsed May 24, 2026
2020 2040
Clock starts
Feb 10, 2020
No longer in force
May 24, 2026
Granted
May 24, 2022
Term would have run to
Feb 10, 2040
base term after the term ends 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.
0 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.
22
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 Feb 10, 2040: 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 Feb 10, 2020, when this application, 16/786,213, was filedFeb 10, 2040High 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 events0 of 3 maintenance fees paidlapsed May 24, 2026High confidence
Computed term endThe steps above, in orderMay 24, 2026High confidence

This family

US 11,328,564Lapsed on the fee record
May 2026
May 2026
US 11,232,684In force
Feb 2040
Feb 2040
US 11,343,898this patent
May 2026
May 2026
US 11,219,112In force
Jul 2040
Jul 2040
US 11,553,571In force
Sep 2040
Sep 2040
Application PCT/US2020/046595PCT application
no patent term
no patent term
Application PCT/US2020/046594PCT application
no patent term
no patent term
Application PCT/US2020/047433PCT application
no patent term
no patent term
8 of 22 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
Feb 12, 2020
Reel 51792, frame 627
Gurjar, Ravindra VirajAppleton GRP 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited