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Ultrasound and Acoustophoresis for Water Purification

US 8,691,145 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Apr 8, 2022 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Nov 16, 2010 as application 12/947,757 · Granted Apr 8, 2014
Base term, 20 years from filing, plus 417 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Apr 8, 2022
2010 2031
Clock starts
Nov 16, 2010
No longer in force
Apr 8, 2022
Granted
Apr 8, 2014
Term would have run to
Aug 23, 2031
base term patent term adjustment after the term ends 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
417
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,679,338.
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.

Its term would have run to Aug 23, 2031: its 20-year base term plus 417 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Nov 16, 2010, when this application, 12/947,757, was filedNov 16, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+417 days, USPTO patent term adjustment recordJan 7, 2032High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,679,338)capped to Aug 23, 2031High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Apr 8, 2022High confidence
Computed term endThe steps above, in orderApr 8, 2022High confidence

This family

US 8,691,145this patent
Apr 2022
Apr 2022
US 9,410,256Lapsed on the fee record
Aug 2024
Aug 2024
US 10,427,956In force
Nov 2030
Nov 2030
Application 15/947,746Abandoned
not computed
not computed
Application 16/299,101Abandoned
not computed
not computed
Application PCT/US2019/021708PCT application
no patent term
no patent term
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
Nov 30, 2010
Reel 25403, frame 263
Dionne, Jason; Lipkens, Bart; Rietman, EdwardFlodesign, Inc.Assignment of Assignor's Interest
Jan 7, 2014
Reel 31905, frame 836
Flodesign, Inc.Flodesign Sonics, Inc.Assignment of Assignor's Interest
Apr 30, 2015
Reel 35541, frame 294
Flodesign, Inc.Flodesign Sonics, Inc.Assignment 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.

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