Term ends Oct 2, 2040 · High confidence
20-year base term ends Feb 23, 2038
Held by At-Memory Computing LP
Filed Feb 23, 2018 as application 15/903,754 · Granted Nov 29, 2022
Base term plus 952 days of patent term adjustment (USPTO delay)
Today
2018
2040
Clock starts
Feb 23, 2018
Feb 23, 2018
Term ends
Oct 2, 2040
Oct 2, 2040
Granted
Nov 29, 2022
Nov 29, 2022
base term
patent term adjustment
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
952
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.
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 952 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 Feb 23, 2018, when this application, 15/903,754, was filed | Feb 23, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +952 days, USPTO patent term adjustment record | Oct 2, 2040 | 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 | Oct 2, 2040 | High confidence |
This family
| US 11,514,294 | this patent Oct 2040 | Oct 2040 |
| US 11,614,947 | In force Feb 2038 | Feb 2038 |
| US 12,061,969 | In force Feb 2038 | Feb 2038 |
| Application 18/126,574 | Abandoned not computed | not computed |
| US 11,941,405 | In force Feb 2038 | Feb 2038 |
| Application 18/770,518 | Abandoned not computed | not computed |
| Application 18/788,433 | Pending not computed | not computed |
7 of 8 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 |
|---|---|---|---|
| Feb 8, 2021 Reel 55178, frame 399 | Kapik Inc. | Untether AI Corporation | Assignment of Assignor's Interest |
| Feb 8, 2021 Reel 55253, frame 804 | Snelgrove, William Martin | Kapik Inc. | Confirmation and Assignment |
| Feb 8, 2021 Reel 55261, frame 192 | Wiebe, Darrick | Kapik Inc. | Confirmation and Assignment |
| Jun 17, 2025 Reel 71655, frame 897 | National Bank of Canada | Untether AI Corporation | Release of Security Interest |
| Apr 23, 2026 Reel 75495, frame 905 | Untether AI Corporation | At-Memory Computing LP | 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 2, 2040. Maintenance fees still fall due before then
Note
The 952 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
That is top 25% of utility patents granted in 2022 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.