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Method and Apparatus for Light Diffusion

US 9,678,383 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jul 27, 2023 (Cowles Company).

Lapsed Jun 13, 2025 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Mar 18, 2016 as application 15/075,001 · Granted Jun 13, 2017
Base term, 20 years from filing
Today
Lapsed Jun 13, 2025
2016 2036
Clock starts
Mar 18, 2016
No longer in force
Jun 13, 2025
Granted
Jun 13, 2017
Term would have run to
Mar 18, 2036
base term after the term ends fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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.
4
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 18, 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 Mar 18, 2016, when this application, 15/075,001, was filedMar 18, 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 Jun 13, 2025High confidence
Computed term endThe steps above, in orderJun 13, 2025High confidence

This family

US 9,678,383this patent
Jun 2025
Jun 2025
Application PCT/US2017/023061PCT application
no patent term
no patent term
US 10,157,896In force
Mar 2036
Mar 2036
Application 16/222,873Abandoned
not computed
not computed
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 24, 2017
Reel 41725, frame 839
Peterson, Cody; Huska, Andrew; Adams, Clinton; Hansen, MonicaRohinni, LLC.Assignment of Assignor's Interest
Jul 27, 2023
Reel 64417, frame 238
Rohinni, Inc.Cowles CompanySecurity Interest
Jan 12, 2024
Reel 66286, frame 270
Rohinni Inc.Magna Electronics, Inc.License
May 15, 2024
Reel 67428, frame 189
Rohinni, Inc.Cowles Semi, LLCCourt Order

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 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited