Collateral for a security interest recorded Feb 23, 2024 (The Stephen Wall 2011 Trust).
Term ends Mar 30, 2038 · High confidence
20-year base term ends Mar 7, 2037
Held by Circa Scientific, Inc.
Filed Mar 7, 2017 as application 15/452,675 · Granted Sep 29, 2020
Base term plus 388 days of patent term adjustment (USPTO delay)
Today
2017
2038
Clock starts
Mar 7, 2017
Mar 7, 2017
Term ends
Mar 30, 2038
Mar 30, 2038
Granted
Sep 29, 2020
Sep 29, 2020
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
388
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.
3
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 388 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 Mar 7, 2017, when this application, 15/452,675, was filed | Mar 7, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +388 days, USPTO patent term adjustment record | Mar 30, 2038 | 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 | Mar 30, 2038 | High confidence |
This family
| US 10,786,651 | this patent Mar 2038 | Mar 2038 |
| US 11,890,431 | In force Aug 2037 | Aug 2037 |
| US 12,551,661 | In force Mar 2037 | Mar 2037 |
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 |
|---|---|---|---|
| Jun 11, 2019 Reel 49438, frame 116 | Wahnschaffe, Douglas; Edminster, Darren; Berhow, Steve | Biomerics, LLC | Assignment of Assignor's Interest |
| Aug 24, 2020 Reel 53580, frame 70 | Biomerics, LLC | Talon Medical, LLC | Assignment of Assignor's Interest |
| Mar 31, 2023 Reel 63185, frame 695 | Talon Medical, LLC D/B/A Talon Surgical | Circa Scientific, Inc. | Assignment of Assignor's Interest |
| Feb 23, 2024 Reel 66547, frame 64 | Circa Scientific, Inc. | The Stephen Wall 2011 Trust | Security Interest |
| Mar 29, 2024 Reel 66945, frame 263 | Circa Scientific, Inc. | Jpmorgan Chase Bank, N.a. | Security Interest |
| Jul 11, 2024 Reel 67959, frame 857 | Jpmorgan Chase Bank, N.a. | Circa Scientific, Inc. | Release of 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
Mar 2038
Term ends Mar 30, 2038. Maintenance fees still fall due before then
Note
The 388 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
later US patents cite this one
That is top 25% of utility patents granted in 2020 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.