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US

Annular or Ring Shaped Fuel Cell Unit

US 8,026,013 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Aug 14, 2026 · Medium confidence

Why Medium: A parent in the chain could not be resolved.

Filed Jan 19, 2010 as application 12/689,726 · Granted Sep 27, 2011
Base term, 20 years from filing
Today
20 years from filing
Term ended Aug 14, 2026
2006 2026
Clock starts
Aug 14, 2006
Term ended
Aug 14, 2026
Granted
Sep 27, 2011
base term 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
None
Term adjustment
No prosecution delay on this record.
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.
4
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. All three maintenance fees were paid, so no fee lapse ended it. Confidence: Medium. 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 14, 2006, when application 11/503,699, the earliest non-provisional in its chain, was filed (this one was filed Jan 19, 2010); a parent in its chain could not be resolved (the next row)Aug 14, 2026High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderAug 14, 2026Medium confidence

This family

US 7,659,022In force
Jan 2027
Jan 2027
Application PCT/US2007/001779PCT application
no patent term
no patent term
Application 11/656,563Abandoned
not computed
not computed
US 8,026,013this patent
Aug 2026
Aug 2026
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
Jan 19, 2010
Reel 23811, frame 691
Valensa, Jeroen; Reinke, Michael J.; Voss, Mark G.Modine Manufacturing CompanyAssignment of Assignor's Interest
Nov 13, 2014
Reel 34163, frame 143
Modine Manufacturing CompanyBloom Energy CorporationAssignment of Assignor's Interest
Dec 15, 2015
Reel 37301, frame 93
Bloom Energy CorporationU.S. Bank National Association, as Collateral AgentSecurity Interest
Nov 29, 2018
Reel 47686, frame 121
U.S. Bank National Association, as Collateral AgentBloom Energy CorporationRelease of Security 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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