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Method of Improving the Ignition Performance of an After-Burner Device for a Bypass Turbojet, and an After-Burner Device of Improved Ignition Performance

US 7,584,615 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Sep 14, 2026 · High confidence

Filed Feb 24, 2005 as application 11/063,741 · Granted Sep 8, 2009
Base term plus 567 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Sep 14, 2026
2005 2026
Clock starts
Feb 24, 2005
Term ended
Sep 14, 2026
Granted
Sep 8, 2009
base term patent term adjustment 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
567
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.
22
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 567 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 24, 2005, when this application, 11/063,741, was filedFeb 24, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+567 days, USPTO patent term adjustment recordSep 14, 2026High 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 orderSep 14, 2026High confidence

This family

US 7,013,650Term ended
Jul 2024
Jul 2024
US 7,310,939Term ended
Feb 2026
Feb 2026
US 7,404,860Term ended
no later than Dec 2023
no later than Dec 2023
US 7,323,061Term ended
no later than Sep 2023
no later than Sep 2023
US 7,332,036Term ended
no later than Sep 2023
no later than Sep 2023
US 7,323,062Term ended
no later than Jul 2023
no later than Jul 2023
US 7,311,981Term ended
May 2025
May 2025
US 7,584,615this patent
Sep 2026
Sep 2026
8 of 22 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
Jun 28, 2005
Reel 16727, frame 578
Baboeuf, Sebastien; Charpenel, Sabine; Maingre, Eric; Page, Alain; Roche, JacquesSNECMA MoteursAssignment of Assignor's Interest
May 22, 2007
Reel 19329, frame 662
SNECMA MoteursSNECMAChange of Name
May 23, 2018
Reel 46479, frame 807
SNECMASafran Aircraft EnginesChange of Name
Aug 24, 2018
Reel 46939, frame 336
SNECMASafran Aircraft EnginesCorrective Assignment to Correct the Cover Sheet to Remove Application Nos. 10250419, 10786507, 10786409, 12416418, 12531115, 12996294, 12094637 12416422 Previously Recorded on Reel 046479 Frame 0807. Assignor(S) Hereby Confirms the Change of Name.

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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