The Patent Finder
US

Cerebral Sensor

US D587,375 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Feb 24, 2023 · High confidence

No current holder resolved from the recorded chain.
Filed Mar 13, 2008 as application 29/305,102 · Granted Feb 24, 2009
Base term, 14 years from grant
Today
14 years from grant
Term ended Feb 24, 2023
2009 2026
Clock starts
Feb 24, 2009
Term ended
Feb 24, 2023
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.
14 years from grant
Base term
No maintenance fees are payable on this kind of patent.
6
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 base term, 14 years from grant, with no adjustment for prosecution delay. No maintenance fees are payable on this kind of patent. 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, 14 years from grantGranted Feb 24, 2009Feb 24, 2023High 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
Computed term endThe steps above, in orderFeb 24, 2023High confidence

This family

US D568,479Term ended
May 2022
May 2022
US D587,375this patent
Feb 2023
Feb 2023
US 9,622,694In force
Apr 2034
Apr 2034
US 10,537,271In force
Feb 2028
Feb 2028
US 11,540,754In force
Feb 2028
Feb 2028
US 12,207,923In force
Jun 2027
Jun 2027
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 10, 2011
Reel 25822, frame 821
Vioptix, Inc.Compass Horizon Funding Company LLCSecurity Agreement
Jul 26, 2016
Reel 39462, frame 113
Compass Horizon Funding Company LLCVioptix, Inc.Release of Security Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center

No maintenance fees are payable on this kind of patent, so the record carries no fee events.

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