Term ends Oct 22, 2040 · High confidence
20-year base term ends Oct 22, 2040
Held by Kai Concepts, LLC
Filed Aug 3, 2021 as application 17/392,461 · Granted Oct 31, 2023
Base term plus 232 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2020
2040
Clock starts
Oct 22, 2020
Oct 22, 2020
Term ends
Oct 22, 2040
Oct 22, 2040
Granted
Oct 31, 2023
Oct 31, 2023
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
232
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 11,091,232.
0 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 232 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 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 Oct 22, 2020, when application 17/077,784, the earliest non-provisional in its chain, was filed (this one was filed Aug 3, 2021) | Oct 22, 2040 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +232 days, USPTO patent term adjustment record | Jun 11, 2041 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,091,232) | capped to Oct 22, 2040 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 22, 2040 | High confidence |
This family
| US 10,946,939 | In force Oct 2040 | Oct 2040 |
| US 11,091,232 | In force Oct 2040 | Oct 2040 |
| Application PCT/US2021/028696 | PCT application no patent term | no patent term |
| US 11,801,919 | this patent Oct 2040 | Oct 2040 |
| Application 18/367,819 | 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 |
|---|---|---|---|
| Sep 22, 2023 Reel 65000, frame 135 | Montague, Donald Lewis; Brock, Joseph Andrew; Bartczak, Tomasz Pawel; Greaves, Matthew Campbell; Korver, Alec; Stepanov, Dmitri | Kai Concepts, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2040
Term ends Oct 22, 2040. Maintenance fees still fall due before then
Note
The 232 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 11,091,232.
Citations
4
later US patents cite this one
That is top 25% 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.