Also listed on Dana Limited, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 16, 2041 · High confidence
20-year base term ends Oct 27, 2040
Filed Oct 27, 2020 as application 17/081,861 · Granted Jan 10, 2023
Base term plus 171 days of patent term adjustment (USPTO delay)
Today
2020
2041
Clock starts
Oct 27, 2020
Oct 27, 2020
Term ends
Apr 16, 2041
Apr 16, 2041
Granted
Jan 10, 2023
Jan 10, 2023
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
171
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
4
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 171 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 Oct 27, 2020, when this application, 17/081,861, was filed | Oct 27, 2040 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +171 days, USPTO patent term adjustment record | Apr 16, 2041 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 16, 2041 | High confidence |
This family
| US 11,548,383 | this patent Apr 2041 | Apr 2041 |
| US 11,623,513 | In force Oct 2040 | Oct 2040 |
| US 12,043,110 | In force Oct 2040 | Oct 2040 |
| US 12,611,926 | In force Oct 2040 | Oct 2040 |
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 |
|---|---|---|---|
| Oct 27, 2020 Reel 54186, frame 573 | Engerman, Eric M. | Dana Automotive Systems Group, LLC | 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
Apr 2041
Term ends Apr 16, 2041. Maintenance fees still fall due before then
Note
The 171 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 10% of utility patents granted in 2023 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.