Term ended Dec 21, 2025 · High confidence
20-year base term ended Dec 21, 2025
Held by Hanon Systems Efp Canada Ltd.
Filed Mar 13, 2013 as application 13/800,227 · Granted Nov 10, 2015
Base term plus 260 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Dec 21, 2025
2005
2026
Clock starts
Dec 21, 2005
Dec 21, 2005
Term ended
Dec 21, 2025
Dec 21, 2025
Granted
Nov 10, 2015
Nov 10, 2015
base term
after the term ends
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
260
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,651,825.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
6
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 260 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 21, 2005, when application PCT/CA2005/001946, the earliest non-provisional in its chain, was filed (this one was filed Mar 13, 2013) | Dec 21, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +260 days, USPTO patent term adjustment record | Sep 7, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,651,825) | capped to Dec 21, 2025 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Dec 21, 2025 | High confidence |
This family
| US 7,794,217 | In force Jul 2027 | Jul 2027 |
| US 8,317,486 | Term ended Apr 2026 | Apr 2026 |
| US 8,651,825 | Term ended Dec 2025 | Dec 2025 |
| US 9,181,803 | this patent Dec 2025 | Dec 2025 |
| US 9,534,597 | Term ended Dec 2025 | Dec 2025 |
5 of 6 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 |
|---|---|---|---|
| Jun 5, 2013 Reel 30548, frame 234 | Williamson, Matthew; Shulver, David R.; Tanasuca, Cezar | Magna Powertrain Inc. | Assignment of Assignor's Interest |
| Mar 19, 2019 Reel 48641, frame 335 | Magna Powertrain Inc. | Magna Powertrain FPC Limited Partnership | Assignment of Assignor's Interest |
| Apr 13, 2021 Reel 55902, frame 901 | Magna Powertrain FPC Limited Partnership | Hanon Systems Efp Canada Ltd. | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 260 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,651,825.
Citations
9
later US patents cite this one
That is above 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.