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US

Power Converter with Modular Stages

US 9,712,051 In force
OverviewFamilyAssignmentsSources & methods

Term ends May 4, 2032 · High confidence

Filed Apr 26, 2016 as application 15/138,692 · Granted Jul 18, 2017
Base term, 20 years from filing
Today
20 years from filing
2012 2032
Clock starts
May 4, 2012
Term ends
May 4, 2032
Granted
Jul 18, 2017
base term 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
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.
25
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 May 4, 2012, when application PCT/US2012/036455, the earliest non-provisional in its chain, was filed (this one was filed Apr 26, 2016)May 4, 2032High 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 orderMay 4, 2032High confidence

This family

Application PCT/US2012/036455PCT application
no patent term
no patent term
US 8,860,396In force
May 2032
May 2032
US 9,362,826In force
May 2032
May 2032
US 9,882,471Lapsed on the fee record
Jan 2026
Jan 2026
US 9,712,051this patent
May 2032
May 2032
Application PCT/US2017/023191PCT application
no patent term
no patent term
US 10,389,235In force
May 2032
May 2032
US 10,326,358In force
Oct 2032
Oct 2032
8 of 25 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 26, 2016
Reel 38384, frame 943
Giuliano, David M.Arctic Sand Technologies, Inc.Assignment of Assignor's Interest
May 11, 2016
Reel 38549, frame 966
Arctic Sand Technologies, Inc.Pacific Western BankSecurity Interest
Apr 5, 2017
Reel 41862, frame 180
Pacific Western BankArctic Sand Technologies, Inc.Release of Security Interest
Sep 5, 2017
Reel 43754, frame 354
Arctic Sand Technologies, Inc.Peregrine Semiconductor CorporationAssignment of Assignor's Interest
Feb 1, 2018
Reel 45221, frame 321
Peregrine Semiconductor CorporationPsemi CorporationChange of Name

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