Term ends Nov 30, 2032 · High confidence
20-year base term ends Nov 30, 2032
Held by Progress Rail Locomotive Inc.
Filed Nov 30, 2012 as application 13/690,797 · Granted Feb 10, 2015
Base term, 20 years from filing
Today
2012
2032
Clock starts
Nov 30, 2012
Nov 30, 2012
Term ends
Nov 30, 2032
Nov 30, 2032
Granted
Feb 10, 2015
Feb 10, 2015
base term
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
None
Term adjustment
No prosecution delay on this record.
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 is its 20-year base term, with no adjustment for 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 Nov 30, 2012, when this application, 13/690,797, was filed | Nov 30, 2032 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 30, 2032 | 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 |
|---|---|---|---|
| Nov 30, 2012 Reel 29385, frame 946 | Wiemeyer, James Fredrick; Deitz, Michael Patrick; Brown, Dale Alexander; Przybylski, Lawrence Stanley; Rudolph, Wayne Allen | Electro-Motive Diesel, Inc. | Assignment of Assignor's Interest |
| Nov 30, 2012 Reel 29386, frame 930 | Fabrikant, Anatoly | Amo Development, LLC. | Assignment of Assignor's Interest |
| Apr 5, 2018 Reel 45849, frame 72 | Electro-Motive Diesel, Inc. | Progress Rail Locomotive Inc. | 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
Nov 2032
Term ends Nov 30, 2032. No further fees fall due before then
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2015 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.