Term ends Oct 10, 2040 · Medium confidence
20-year base term ends Mar 11, 2040
Why Medium: A parent in the chain could not be resolved.
Held by At-Memory Computing LP
Filed Feb 18, 2022 as application 17/675,729 · Granted Oct 22, 2024
Base term plus 213 days of patent term adjustment (USPTO delay)
Today
2020
2040
Clock starts
Mar 11, 2020
Mar 11, 2020
Term ends
Oct 10, 2040
Oct 10, 2040
Granted
Oct 22, 2024
Oct 22, 2024
base term
patent term adjustment
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
213
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
11
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 213 days past its 20-year base term on prosecution delay. 0 of 3 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 Mar 11, 2020, when application 16/815,535, the earliest non-provisional in its chain, was filed (this one was filed Feb 18, 2022); a parent in its chain could not be resolved (the next row) | Mar 11, 2040 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +213 days, USPTO patent term adjustment record | Oct 10, 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 10, 2040 | Medium confidence |
This family
| US 11,256,503 | In force Mar 2040 | Mar 2040 |
| US 11,342,944 | In force Sep 2040 | Sep 2040 |
| US 11,468,002 | In force Feb 2041 | Feb 2041 |
| US 12,124,530 | this patent Oct 2040 | Oct 2040 |
| US 11,881,872 | In force Sep 2040 | Sep 2040 |
| US 11,989,155 | In force Feb 2041 | Feb 2041 |
| US 12,147,380 | In force Feb 2041 | Feb 2041 |
| US 11,934,482 | In force Mar 2040 | Mar 2040 |
8 of 11 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 |
|---|---|---|---|
| Apr 6, 2022 Reel 59509, frame 890 | Snelgrove, William Martin | Untether AI Corporation | Assignment of Assignor's Interest |
| 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 10, 2040. Maintenance fees still fall due before then
Note
The 213 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.