Also listed on Alstom, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 21, 2036 · High confidence
20-year base term ends Mar 25, 2035
Held by Alstom Transport Technologies
Filed Mar 25, 2015 as application 14/667,838 · Granted Jan 16, 2018
Base term plus 393 days of patent term adjustment (USPTO delay)
Today
2015
2036
Clock starts
Mar 25, 2015
Mar 25, 2015
Term ends
Apr 21, 2036
Apr 21, 2036
Granted
Jan 16, 2018
Jan 16, 2018
base term
patent term adjustment
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
393
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.
5
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 393 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 Mar 25, 2015, when this application, 14/667,838, was filed | Mar 25, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +393 days, USPTO patent term adjustment record | Apr 21, 2036 | 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 | Apr 21, 2036 | High confidence |
This family
| US 10,017,077 | In force Aug 2036 | Aug 2036 |
| US 9,868,365 | this patent Apr 2036 | Apr 2036 |
| US 10,554,117 | In force Dec 2036 | Dec 2036 |
| US 10,328,952 | In force Mar 2037 | Mar 2037 |
| US 10,322,730 | Lapsed on the fee record Jun 2023 | Jun 2023 |
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 |
|---|---|---|---|
| May 4, 2015 Reel 35554, frame 283 | Hourtane, Jean-luc | Alstom Transport Technologies | Assignment of Assignor's Interest |
| Jul 31, 2017 Reel 43382, frame 290 | Alstom Transport Technologies | Alstom Transport Technologies | Change of Address |
| Sep 3, 2024 Reel 68823, frame 899 | Alstom Transport Technologies | Alstom Holdings | Dissolution and Transfer of Assets |
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
Apr 2036
Term ends Apr 21, 2036. Maintenance fees still fall due before then
Note
The 393 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
11
later US patents cite this one
That is top 25% of utility patents granted in 2018 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.