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Method, system, and apparatus for the thermal storage of energy generated by multiple nuclear reactor systems

US 9,728,288 In force
OverviewFamilyAssignmentsSources & methods

Term ends Dec 15, 2034 · High confidence

Filed Aug 2, 2010 as application 12/804,950 · Granted Aug 8, 2017
Base term plus 1761 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2034
Clock starts
Feb 18, 2010
Term ends
Dec 15, 2034
Granted
Aug 8, 2017
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
1,761
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.
11
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 1761 days past its 20-year base term on 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 Feb 18, 2010, when application 12/660,025, the earliest non-provisional in its chain, was filed (this one was filed Aug 2, 2010)Feb 18, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1761 days, USPTO patent term adjustment recordDec 15, 2034High 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 orderDec 15, 2034High confidence

This family

US 10,535,437In force
Aug 2036
Aug 2036
US 9,761,337In force
Jan 2036
Jan 2036
US 9,748,007In force
May 2035
May 2035
US 9,728,288this patent
Dec 2034
Dec 2034
Application PCT/US2011/000302PCT application
no patent term
no patent term
Application PCT/US2011/000297PCT application
no patent term
no patent term
Application PCT/US2011/000303PCT application
no patent term
no patent term
Application PCT/US2011/000304PCT application
no patent term
no patent term
8 of 11 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
Oct 25, 2010
Reel 25189, frame 170
Hyde, Roderick A.; Ishikawa, Muriel Y.; Tegreene, Clarence T.; Walter, Joshua C.; Wood, Lowell L, JR; Wood, Victoria Y.h.Searete LLCAssignment of Assignor's Interest
Apr 24, 2014
Reel 32754, frame 810
Searete LLCTerrapower, 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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