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US

Shielded Gate Trench Fet with the Shield and Gate Electrodes Connected Together in Non-Active Region

US 7,859,047 In force
OverviewFamilyAssignmentsSources & methods

Term ends Nov 22, 2026 · High confidence

Filed Nov 11, 2008 as application 12/268,616 · Granted Dec 28, 2010
Base term plus 156 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2026
Clock starts
Jun 19, 2006
Term ends
Nov 22, 2026
Granted
Dec 28, 2010
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
156
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
5
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 156 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Jun 19, 2006, when application 11/471,279, the earliest non-provisional in its chain, was filed (this one was filed Nov 11, 2008)Jun 19, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+156 days, USPTO patent term adjustment recordNov 22, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderNov 22, 2026High confidence

This family

US 7,319,256Term ended
Jun 2026
Jun 2026
Application PCT/US2007/069329PCT application
no patent term
no patent term
US 7,473,603Term ended
Jun 2026
Jun 2026
US 7,859,047this patent
Nov 2026
Nov 2026
Application 12/978,824Abandoned
not computed
not computed
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
Sep 19, 2016
Reel 40075, frame 644
Fairchild Semiconductor CorporationDeutsche Bank AG New York Branch, as Collateral AgentPatent Security Agreement
Aug 3, 2021
Reel 57694, frame 374
Fairchild Semiconductor CorporationSemiconductor Components Industries, LLCAssignment of Assignor's Interest
Oct 28, 2021
Reel 57969, frame 206
Deutsche Bank AG New York BranchFairchild Semiconductor CorporationRelease of Security Interest
Nov 12, 2021
Reel 58871, frame 799
Semiconductor Components Industries, LLCDeutsche Bank AG New York Branch, as Collateral AgentSecurity Interest
Jun 22, 2023
reel/frame not recorded
Deutsche Bank AG New York Branch, as Collateral AgentSemiconductor Components Industries, LLCRelease of Security Interest in Patents Recorded at Reel 040075, Frame 0644
Jun 22, 2023
reel/frame not recorded
Deutsche Bank AG New York Branch, as Collateral AgentFairchild Semiconductor CorporationRelease of Security Interest in Patents Recorded at Reel 040075, Frame 0644
Jun 22, 2023
Reel 64070, frame 536
Deutsche Bank AG New York Branch, as Collateral AgentSemiconductor Components Industries, LLC; Fairchild Semiconductor CorporationRelease of Security Interest in Patents Recorded at Reel 040075, Frame 0644
Jun 23, 2023
reel/frame not recorded
Deutsche Bank AG New York Branch, as Collateral AgentSemiconductor Components Industries, LLCRelease of Security Interest in Patents Recorded at Reel 058871, Frame 0799
Jun 23, 2023
reel/frame not recorded
Deutsche Bank AG New York Branch, as Collateral AgentFairchild Semiconductor CorporationRelease of Security Interest in Patents Recorded at Reel 058871, Frame 0799
Jun 23, 2023
Reel 65653, frame 1
Deutsche Bank AG New York Branch, as Collateral AgentSemiconductor Components Industries, LLC; Fairchild Semiconductor CorporationRelease of Security Interest in Patents Recorded at Reel 058871, Frame 0799

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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