Lapsed Mar 12, 2017 on the fee record · High confidence
20-year base term ends Feb 26, 2029
First maintenance fee unpaid; grace period ended.
Held by Safran Nacelles
Filed Aug 19, 2010 as application 12/918,329 · Granted Mar 12, 2013
Base term, 20 years from filing
Today
Lapsed Mar 12, 2017
2009
2029
Clock starts
Feb 26, 2009
Feb 26, 2009
No longer in force
Mar 12, 2017
Mar 12, 2017
Granted
Mar 12, 2013
Mar 12, 2013
Term would have run to
Feb 26, 2029
Feb 26, 2029
base term
after the term ends
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.
0 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 Feb 26, 2029: its 20-year base term, with no adjustment for prosecution delay. 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 Feb 26, 2009, when application PCT/FR2009/000211, the earliest non-provisional in its chain, was filed (this one was filed Aug 19, 2010) | Feb 26, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 0 of 3 maintenance fees paid | lapsed Mar 12, 2017 | High confidence |
| Computed term end | The steps above, in order | Mar 12, 2017 | High 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 | Lapsed on the fee record Jul 2026 | Jul 2026 |
| US 8,393,435 | this patent 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 24857, frame 721 | Guerin, Philipe | Aircelle | Assignment of Assignor's Interest |
| Dec 27, 2013 Reel 32421, frame 162 | Riverbed Technology, Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Patent Security Agreement |
| Apr 28, 2015 Reel 35521, frame 69 | Barclays Bank PLC | Riverbed Technology, Inc. | Release of Security Interest in Patents |
| Jun 2, 2015 Reel 35807, frame 680 | Jpmorgan Chase Bank, N.a. | Riverbed Technology, Inc. | Corrective Assignment to Correct the Conveying Party Name Previously Recorded on Reel 035521 Frame 0069. Assignor(S) Hereby Confirms the Release of Security Interest in Patents. |
| Dec 9, 2016 Reel 40698, frame 286 | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2013 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.