Collateral for a security interest recorded Jul 10, 2026 (Acquiom Agency Services LLC).
Term ends Jun 25, 2040 · High confidence
20-year base term ends Jun 25, 2040
Held by Corvil Limited
Filed Apr 26, 2022 as application 17/729,218 · Granted Mar 28, 2023
Base term, 20 years from filing
Today
2020
2040
Clock starts
Jun 25, 2020
Jun 25, 2020
Term ends
Jun 25, 2040
Jun 25, 2040
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.
2
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 Jun 25, 2020, when application 16/911,905, the earliest non-provisional in its chain, was filed (this one was filed Apr 26, 2022) | Jun 25, 2040 | 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 | Jun 25, 2040 | High confidence |
This family
| US 11,334,285 | In force Jul 2040 | Jul 2040 |
| US 11,614,887 | this patent Jun 2040 | Jun 2040 |
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 26, 2022 Reel 59732, frame 596 | Li, Guofeng; Jinks, Ken; Dowse, Ian; Peixoto, Alex Caldas; Korta, Franciszek | Corvil Limited | Assignment of Assignor's Interest |
| Feb 7, 2023 Reel 62614, frame 207 | Pico Quantitative Trading LLC; Spryware, LLC; Corvil Limited; Corvil, Inc.; Pico Quantitative Trading Holdings LLC | Western Alliance Bank | Security Interest |
| Jan 29, 2024 Reel 66283, frame 698 | Western Alliance Bank | Pico Quantitative Trading LLC; Spryware, LLC; Corvil Limited; Corvil, Inc.; Pico Quantitative Trading Holdings LLC | Release of Security Interest |
| Jan 29, 2024 reel/frame not recorded | Western Alliance Bank | Pico Quantitative Trading LLC | Release of Security Interest |
| Jan 29, 2024 reel/frame not recorded | Western Alliance Bank | Spryware, LLC | Release of Security Interest |
| Jan 29, 2024 reel/frame not recorded | Western Alliance Bank | Corvil Limited | Release of Security Interest |
| Jan 29, 2024 reel/frame not recorded | Western Alliance Bank | Corvil, Inc. | Release of Security Interest |
| Jan 29, 2024 reel/frame not recorded | Western Alliance Bank | Pico Quantitative Trading Holdings LLC | Release of Security Interest |
| Dec 13, 2024 Reel 69632, frame 457 | Corvil Limited | Obsidian Agency Services, Inc. | Security Interest |
| Jul 10, 2026 Reel 75237, frame 803 | Obsidian Agency Services, Inc., as Collateral Agent | Corvil Limited | Release of Security Interest |
| Jul 10, 2026 Reel 75239, frame 94 | Corvil Limited | Acquiom Agency Services LLC, as Collateral Agent | Security 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
Jun 2040
Term ends Jun 25, 2040. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
That is below the median 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.