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US

Fluorescent Silica-Based Nanoparticles

US 9,625,456 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jul 2, 2030 · High confidence

Filed Sep 27, 2012 as application 13/381,209 · Granted Apr 18, 2017
Base term, 20 years from filing
Today
20 years from filing
2010 2030
Clock starts
Jul 2, 2010
Term ends
Jul 2, 2030
Granted
Apr 18, 2017
base term 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.
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.
12
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. 2 of 3 maintenance fees are 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 Jul 2, 2010, when application PCT/US2010/040994, the earliest non-provisional in its chain, was filed (this one was filed Sep 27, 2012)Jul 2, 2030High 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 events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJul 2, 2030High confidence

This family

Application 61/222,851Provisional application
no patent term
no patent term
Application 61/312,827Provisional application
no patent term
no patent term
Application PCT/US2010/040994PCT application
no patent term
no patent term
US 9,625,456this patent
Jul 2030
Jul 2030
Application 61/794,414Provisional application
no patent term
no patent term
US 9,999,694In force
no later than Jul 2030
no later than Jul 2030
Application PCT/US2014/030401PCT application
no patent term
no patent term
US 10,548,997In force
Jul 2030
Jul 2030
8 of 12 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
Apr 1, 2013
Reel 30122, frame 613
Sloan-Kettering Institute for Cancer ResNational Institutes of Health (Nih), U.S. Dept. of Health and Human Services (DHHS), U.S. GovernmentConfirmatory License
Aug 15, 2014
Reel 33546, frame 617
Wiesner, Ulrich; Burns, AndrewCornell UniversityAssignment of Assignor's Interest
Mar 10, 2016
Reel 37947, frame 746
Bradbury, Michelle; Penate Medina, Oula; Lewis, Jason; Larson, StevenSloan-Kettering Institute for Cancer ResearchAssignment of Assignor's Interest
Jan 18, 2017
Reel 41010, frame 473
Ow, HooiswengCornell UniversityAssignment of Assignor's 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 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