Term ends no later than Jun 21, 2042 · Medium confidence
20-year base term ends Jun 21, 2042
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Jun 21, 2022
Jun 21, 2042
Apr 22, 2025
This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 0 of 3 maintenance fees are paid so far. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jun 21, 2022, when application PCT/IB2022/055759, the earliest non-provisional in its chain, was filed (this one was filed Aug 21, 2023) | Jun 21, 2042 | 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 | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium 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 | no later than Jun 21, 2042 | Medium confidence |
This family
| US 12,237,008 | In force Jun 2042 | Jun 2042 |
| US 11,990,181 | In force Jun 2042 | Jun 2042 |
| US 12,283,313 | this patent no later than Jun 2042 | no later than Jun 2042 |
| US 11,955,170 | In force Jun 2042 | Jun 2042 |
| Application 18/953,318 | Pending not computed | not computed |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Apr 2, 2024 Reel 66973, frame 253 | Sato, Katsuyuki; Snelgrove, William Martin; Saijagan, Saijagan | 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.
What's changing
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Jun 21, 2042. We will not guess the cap.