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US

Ultrasonic Generator Systems and Methods

US 9,504,471 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Cybersonics, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Sep 29, 2034 · High confidence

Filed Sep 25, 2013 as application 14/037,096 · Granted Nov 29, 2016
Base term plus 369 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2013 2034
Clock starts
Sep 25, 2013
Term ends
Sep 29, 2034
Granted
Nov 29, 2016
base term patent term adjustment 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
369
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
2
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 369 days past its 20-year base term on 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 Sep 25, 2013, when this application, 14/037,096, was filedSep 25, 2033High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+369 days, USPTO patent term adjustment recordSep 29, 2034High 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 orderSep 29, 2034High confidence

This family

US 9,504,471this patent
Sep 2034
Sep 2034
US 9,622,749In force
Sep 2033
Sep 2033
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
Aug 22, 2014
Reel 33592, frame 796
Vaitekunas, Jeffrey J.; Rose, Emery S.Cybersonics, Inc.Assignment of Assignor's Interest
May 16, 2019
Reel 49195, frame 682
Cybersonics, Inc.Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies AmericaAssignment 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