Term ends Sep 30, 2034 · High confidence
20-year base term ends Dec 17, 2033
Held by Rolls-Royce Corporation
Filed Dec 17, 2013 as application 14/109,416 · Granted Nov 1, 2016
Base term plus 287 days of patent term adjustment (USPTO delay)
Today
2013
2034
Clock starts
Dec 17, 2013
Dec 17, 2013
Term ends
Sep 30, 2034
Sep 30, 2034
Granted
Nov 1, 2016
Nov 1, 2016
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
287
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.
8
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 287 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 17, 2013, when this application, 14/109,416, was filed | Dec 17, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +287 days, USPTO patent term adjustment record | Sep 30, 2034 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 30, 2034 | High confidence |
This family
| US 9,482,451 | this patent Sep 2034 | Sep 2034 |
| US 9,718,553 | In force Jul 2034 | Jul 2034 |
| Application PCT/US2013/078155 | PCT application no patent term | no patent term |
| US 9,676,484 | In force Aug 2034 | Aug 2034 |
| US 10,288,325 | In force May 2034 | May 2034 |
| US 10,132,529 | In force Oct 2034 | Oct 2034 |
| US 10,302,342 | In force Nov 2034 | Nov 2034 |
| US 11,448,432 | In force Mar 2035 | Mar 2035 |
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 |
|---|---|---|---|
| Jan 16, 2014 Reel 31987, frame 135 | Snyder, Douglas J.; Sweeney, Patrick C. | Rolls-Royce North American Technologies, Inc. | Assignment of Assignor's Interest |
| Jan 16, 2014 Reel 31987, frame 279 | Vaisman, Igor | Rolls-Royce Corporation | Assignment 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Sep 2034
Term ends Sep 30, 2034. Maintenance fees still fall due before then
Note
The 287 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2016 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.