Term ends Feb 23, 2038 · High confidence
20-year base term ends Feb 23, 2038
Held by At-Memory Computing LP
Filed Aug 21, 2020 as application 16/975,097 · Granted Mar 28, 2023
Base term, 20 years from filing
Today
2018
2038
Clock starts
Feb 23, 2018
Feb 23, 2018
Term ends
Feb 23, 2038
Feb 23, 2038
Granted
Mar 28, 2023
Mar 28, 2023
base term
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
None
Term adjustment
No prosecution delay on this record.
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 is its 20-year base term, with no adjustment for 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 application 15/903,754, the earliest non-provisional in its chain, was filed (this one was filed Aug 21, 2020) | Feb 23, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | Feb 23, 2038 | High confidence |
This family
| US 11,514,294 | In force Oct 2040 | Oct 2040 |
| US 11,614,947 | this patent 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 |
|---|---|---|---|
| Nov 25, 2020 Reel 54471, frame 326 | Snelgrove, William Martin; Wiebe, Darrick John | 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
Feb 2038
Term ends Feb 23, 2038. Maintenance fees still fall due before then
Citations
15
later US patents cite this one
That is top 5% 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.