Term ends Nov 1, 2033 · Medium confidence
20-year base term ends Nov 1, 2033
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 11,761,390, US 11,905,896, US 12,723,549), so the cap could be lower.
Held by Champion Power Equipment, Inc.
Filed Jan 17, 2025 as application 19/027,054 · Granted Sep 8, 2026
Base term plus 28 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2013
2033
Clock starts
Nov 1, 2013
Nov 1, 2013
Term ends
Nov 1, 2033
Nov 1, 2033
Granted
Sep 8, 2026
Sep 8, 2026
base term
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
28
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 10,598,101, US 11,306,667, US 11,761,390, US 11,905,896, US 12,723,549, US 9,435,273.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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 28 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 1 maintenance fees are paid so far. Confidence: Medium. 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 1, 2013, when application 14/069,747, the earliest non-provisional in its chain, was filed (this one was filed Jan 17, 2025) | Nov 1, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +28 days, USPTO patent term adjustment record | Nov 29, 2033 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,598,101, US 11,306,667, US 11,761,390, US 11,905,896, US 12,723,549, US 9,435,273) | capped to Nov 1, 2033 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 1, 2033 | Medium confidence |
This family
| US 9,435,273 | In force May 2034 | May 2034 |
| US 10,598,101 | In force May 2034 | May 2034 |
| US 11,306,667 | In force Nov 2033 | Nov 2033 |
| US 11,761,390 | In force no later than Nov 2033 | no later than Nov 2033 |
| US 11,905,896 | In force no later than Nov 2033 | no later than Nov 2033 |
| US 12,723,549 | In force no later than Nov 2033 | no later than Nov 2033 |
| US 12,729,655 | this patent Nov 2033 | Nov 2033 |
| Application 19/027,095 | Pending not computed | not computed |
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 20, 2025 Reel 69929, frame 194 | Sarder, Mark J.; Jenison, Leigh; Schmit, Ian | Champion Engine Technology, LLC | Assignment of Assignor's Interest |
| Jan 20, 2025 Reel 69929, frame 250 | Champion Engine Technology, LLC | Champion Power Equipment, Inc. | 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
Nov 2033
Term ends Nov 1, 2033. Maintenance fees still fall due before then
Note
The 28 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 10,598,101, US 11,306,667, US 11,761,390, US 11,905,896, US 12,723,549, US 9,435,273.
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.