Lapsed Jul 15, 2026 on the fee record · Medium confidence
20-year base term ends Jan 28, 2029
Why Medium: The fee record shows no payment for this window, and USPTO's status still reads "Patented Case".
Third maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Held by Safran Nacelles
Filed Aug 19, 2010 as application 12/918,358 · Granted Jul 15, 2014
Base term, 20 years from filing, plus 450 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 15, 2026
2009
2030
Clock starts
Jan 28, 2009
Jan 28, 2009
No longer in force
Jul 15, 2026
Jul 15, 2026
Granted
Jul 15, 2014
Jul 15, 2014
Term would have run to
Apr 23, 2030
Apr 23, 2030
base term
patent term adjustment
after the term ends
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
450
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.
53
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Apr 23, 2030: its 20-year base term plus 450 days of term adjustment for prosecution delay. 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 28, 2009, when application PCT/FR2009/000095, the earliest non-provisional in its chain, was filed (this one was filed Aug 19, 2010) | Jan 28, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +450 days, USPTO patent term adjustment record | Apr 23, 2030 | 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 | The fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Jul 15, 2026 | Medium confidence |
| Computed term end | The steps above, in order | Jul 15, 2026 | Medium confidence |
This family
| US 8,955,305 | In force Jan 2031 | Jan 2031 |
| US 8,943,793 | In force Apr 2030 | Apr 2030 |
| US 8,975,911 | In force Apr 2029 | Apr 2029 |
| US 8,573,934 | In force Feb 2031 | Feb 2031 |
| US 8,777,164 | this patent Jul 2026 | Jul 2026 |
| US 8,393,435 | Lapsed on the fee record Mar 2017 | Mar 2017 |
| US 8,960,597 | In force May 2030 | May 2030 |
| US 8,640,825 | Lapsed on the fee record Feb 2026 | Feb 2026 |
8 of 53 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Aug 19, 2010 Reel 24858, frame 813 | Vauchel, Guy Bernard; Beilliard, Stephane | Aircelle | Assignment of Assignor's Interest |
| Dec 9, 2016 Reel 40700, frame 226 | Aircelle | Safran Nacelles | 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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Alerts on its grants, lapses and transfers.
What's changing
Note
The 450 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
later US patents cite this one
That is above the median of utility patents granted in 2014 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.