Also listed on SNECMA, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Dec 14, 2026 · High confidence

Computed 20-year base term

Held by Safran Aircraft Engines

Filed Jul 26, 2006 as application 11/460,091 · Granted Jul 21, 2009

Base term plus 141 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Dec 14, 2026

2006 2026

Clock starts
Jul 26, 2006

Term ends
Dec 14, 2026

Granted
Jul 21, 2009

base term patent term adjustment fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

141

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.

This patent's term runs 141 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.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Jul 26, 2006, when this application, 11/460,091, was filed	Jul 26, 2026	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+141 days, USPTO patent term adjustment record	Dec 14, 2026	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Dec 14, 2026	High confidence

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.

Recorded	Assignor	Assignee	Conveyance
Sep 25, 2006 Reel 18342, frame 179	Guerche, Didier; Hanny, Jean-claude; Prigent, Serge	SNECMA	Assignment of Assignor's Interest
May 23, 2018 Reel 46479, frame 807	SNECMA	Safran Aircraft Engines	Change of Name
Aug 24, 2018 Reel 46939, frame 336	SNECMA	Safran Aircraft Engines	Corrective 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.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Dec 2026

Term ends Dec 14, 2026. No further fees fall due before then

Note

The 141 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is below the median of utility patents granted in 2009 in our data, the only group it is compared against. How we rank

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

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