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Light Assembly for Providing Substantially Uniform Illumination

US 9,812,043 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Apr 26, 2019 (Partners for Growth V, L.P.).

Lapsed Nov 7, 2025 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Feb 24, 2015 as application 14/630,500 · Granted Nov 7, 2017
Base term, 20 years from filing
Today
Lapsed Nov 7, 2025
2013 2033
Clock starts
Mar 15, 2013
No longer in force
Nov 7, 2025
Granted
Nov 7, 2017
Term would have run to
Mar 15, 2033
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.
24
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 Mar 15, 2033: 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 Mar 15, 2013, when application 13/836,517, the earliest non-provisional in its chain, was filed (this one was filed Feb 24, 2015)Mar 15, 2033High 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 Nov 7, 2025High confidence
Computed term endThe steps above, in orderNov 7, 2025High 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 9,812,043this patent
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.

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
Mar 18, 2016
Reel 38029, frame 7
Auyeung, David SiucheongUltravision Holdings, LLCAssignment of Assignor's Interest
Mar 18, 2016
Reel 38031, frame 198
Ultravision Holdings, LLCUltravision Technologies, LLCAssignment of Assignor's Interest
Apr 7, 2016
Reel 38222, frame 605
Hall, William Y.Ultravision Technologies, LLCAssignment of Assignor's Interest
Apr 7, 2016
Reel 38222, frame 693
Magarill, SimonUltravision Technologies, LLCAssignment of Assignor's Interest
Apr 26, 2019
Reel 49011, frame 635
Ultravision Technologies, LLCPartners for Growth V, L.P.Security 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