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US

Device Comprising a Film-Based Lightguide and Component with Angled Teeth

US 9,523,807 In force (reinstated)
OverviewFamilyAssignmentsSources & methods

Term ends Mar 8, 2030 · Medium confidence

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

Held by Azumo, Inc.
Filed Nov 21, 2014 as application 14/550,510 · Granted Dec 20, 2016
Base term plus 41 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2030
Clock starts
Jan 26, 2010
Term ends
Mar 8, 2030
Granted
Dec 20, 2016
base term patent term adjustment 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
41
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,764,262, to Mar 8, 2030. The term already ends on or before that date, so the cap shortened nothing.
2 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.
10
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 runs 41 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 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 Jan 26, 2010, when application PCT/US2010/022066, the earliest non-provisional in its chain, was filed (this one was filed Nov 21, 2014); a parent in its chain could not be resolved (the next row)Jan 26, 2030High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+41 days, USPTO patent term adjustment recordMar 8, 2030High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,764,262)resolves to Mar 8, 2030, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn force (reinstated)High confidence
Computed term endThe steps above, in orderMar 8, 2030Medium confidence

This family

US 8,905,610In force
Dec 2030
Dec 2030
US 8,764,262In force
Sep 2030
Sep 2030
US 9,523,807this patent
Mar 2030
Mar 2030
US 10,175,413In force
Mar 2030
Mar 2030
US 10,466,409In force
Jan 2030
Jan 2030
US 10,935,716In force (reinstated)
no later than Jan 2030
no later than Jan 2030
US 11,256,025In force
Jan 2030
Jan 2030
US 11,640,026In force
Jan 2030
Jan 2030
8 of 10 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 9, 2015
Reel 34920, frame 377
Nichol, Anthony John; Coleman, Zane A.Flex Lighting II, LLCAssignment of Assignor's Interest
Sep 12, 2022
Reel 61065, frame 860
Azumo, Inc.Venture Lending & Leasing IX, Inc.; Wti Fund X, Inc.Security Interest
Sep 12, 2022
reel/frame not recorded
Azumo, Inc.Venture Lending & Leasing IX, Inc.Security Interest
Sep 12, 2022
reel/frame not recorded
Azumo, Inc.Wti Fund X, Inc.Security Interest
Dec 17, 2025
Reel 74291, frame 241
Flex Lighting II, LLCAzumo, Inc.Change of Name

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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