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DC Bus Voltage Control for Two Stage Solar Converter

US 7,855,906 In force
OverviewFamilyAssignmentsSources & methods

Term ends Oct 26, 2029 · High confidence

Filed Oct 26, 2009 as application 12/605,514 · Granted Dec 21, 2010
Base term, 20 years from filing
Today
20 years from filing
2009 2029
Clock starts
Oct 26, 2009
Term ends
Oct 26, 2029
Granted
Dec 21, 2010
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.
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.
2
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 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 Oct 26, 2009, when this application, 12/605,514, was filedOct 26, 2029High 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 events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 26, 2029High confidence

This family

US 7,855,906this patent
Oct 2029
Oct 2029
US 8,085,564In force
Oct 2029
Oct 2029
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
Oct 26, 2009
Reel 23421, frame 969
Klodowski, Anthony Michael; Smith, David; Wagoner, Robert Gregory; Barker, Sidney AllenGeneral Electric CompanyAssignment of Assignor's Interest
Dec 14, 2023
Reel 66000, frame 694
General Electric CompanyGE Grid Solutions LLCAssignment 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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