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US

Lighting Assembly with LEDs and Optical Elements

US 10,891,881 In force
OverviewFamilySources & methods

Term ends Mar 15, 2033 · High confidence

Filed Jan 23, 2020 as application 16/750,361 · Granted Jan 12, 2021
Base term, 20 years from filing
Today
20 years from filing
2013 2033
Clock starts
Mar 15, 2013
Term ends
Mar 15, 2033
Granted
Jan 12, 2021
base term 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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,339,841, US 9,234,642, US 9,349,307, US 9,514,663, US 9,524,661, US 9,732,932, US 9,734,737, US 9,734,738, US 9,947,248, to Mar 15, 2033. The term already ends on or before that date, so the cap shortened nothing.
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.
24
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 3 maintenance fees is paid so far. 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 Mar 15, 2013, when application 13/836,517, the earliest non-provisional in its chain, was filed (this one was filed Jan 23, 2020)Mar 15, 2033High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 10,339,841, US 9,234,642, US 9,349,307, US 9,514,663, US 9,524,661, US 9,732,932, US 9,734,737, US 9,734,738, US 9,947,248)resolves to Mar 15, 2033, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderMar 15, 2033High confidence

This family

US 8,974,077Lapsed on the fee record
Mar 2023
Mar 2023
US 8,985,806Lapsed on the fee record
Mar 2023
Mar 2023
US 9,812,043Lapsed on the fee record
Nov 2025
Nov 2025
US 9,234,642Lapsed on the fee record
Jan 2024
Jan 2024
US 9,212,803Lapsed on the fee record
Dec 2023
Dec 2023
US 9,589,488In force
Mar 2033
Mar 2033
US 9,349,307Lapsed on the fee record
May 2024
May 2024
US 9,734,737Lapsed on the fee record
Aug 2025
Aug 2025
8 of 24 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

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