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US

Voltage Regulator

US 8,866,457 Lapsed on the fee record
OverviewAssignmentsSources & methods

Also listed on Sii Semiconductor Corporation, an earlier holder on the record. The recorded assignments below show how it moved.

Lapsed Oct 21, 2026 on the fee record · Low confidence

Third maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.

Held by Ablic Inc.
Filed Aug 2, 2012 as application 13/564,876 · Granted Oct 21, 2014
Base term, 20 years from filing, plus 289 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 21, 2026
2012 2033
Clock starts
Aug 2, 2012
No longer in force
Oct 21, 2026
Granted
Oct 21, 2014
Term would have run to
May 18, 2033
base term patent term adjustment after the term ends 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
289
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.

Its term would have run to May 18, 2033: its 20-year base term plus 289 days of term adjustment for prosecution delay. Confidence: Low. 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 Aug 2, 2012, when this application, 13/564,876, was filedAug 2, 2032High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+289 days, USPTO patent term adjustment recordMay 18, 2033High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee eventsNo fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case"lapsed Oct 21, 2026Low confidence
Computed term endThe steps above, in orderOct 21, 2026Low confidence

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 2, 2012
Reel 28712, frame 646
Endo, Daiki; Heng, SocheatSeiko Instruments Inc.Assignment of Assignor's Interest
Feb 11, 2016
Reel 37783, frame 166
Seiko Instruments Inc.Sii Semiconductor Corporation .Assignment of Assignor's Interest
Feb 23, 2016
Reel 37903, frame 928
Seiko Instruments Inc.Sii Semiconductor CorporationCorrective Assignment to Correct the Execution Date Previously Recorded at Reel: 037783 Frame: 0166. Assignor(S) Hereby Confirms the Assignment.
Mar 12, 2018
Reel 45567, frame 927
Sii Semiconductor CorporationAblic Inc.Change of Name
Jun 8, 2023
Reel 64021, frame 575
Ablic Inc.Ablic Inc.Change of Address

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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