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US

Ultrasound Assisted Catheter Placement System

US 11,191,928 In force
OverviewFamilyAssignmentsSources & methods

Term ends Feb 2, 2035 · High confidence

Held by Sonostik LLC
Filed Aug 21, 2018 as application 16/107,373 · Granted Dec 7, 2021
Base term plus 340 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2014 2035
Clock starts
Feb 27, 2014
Term ends
Feb 2, 2035
Granted
Dec 7, 2021
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
340
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
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 runs 340 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 Feb 27, 2014, when application PCT/US2014/018931, the earliest non-provisional in its chain, was filed (this one was filed Aug 21, 2018)Feb 27, 2034High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+340 days, USPTO patent term adjustment recordFeb 2, 2035High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 2, 2035High confidence

This family

Application PCT/US2014/018931PCT application
no patent term
no patent term
Application 14/633,960Abandoned
not computed
not computed
Application PCT/US2015/018047PCT application
no patent term
no patent term
US 10,092,731In force
Feb 2034
Feb 2034
Application 14/831,429Abandoned
not computed
not computed
US 11,191,928this patent
Feb 2035
Feb 2035
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
Jun 6, 2019
Reel 49392, frame 530
Almansouri, Hawaa; Castro, Nathan J.; Corman, Adam; Sikka, Neal K.; Holmes, Benjamin B.The George Washington UniversityAssignment of Assignor's Interest
Jun 6, 2019
Reel 49392, frame 605
The George Washington UniversitySonostik LLCAssignment 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 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