Term ends Feb 22, 2038 · High confidence
20-year base term ends Oct 13, 2037
Held by T Stamp Inc.
Filed Apr 22, 2020 as application 16/855,576 · Granted Mar 1, 2022
Base term plus 132 days of patent term adjustment (USPTO delay)
Today
2017
2038
Clock starts
Oct 13, 2017
Oct 13, 2017
Term ends
Feb 22, 2038
Feb 22, 2038
Granted
Mar 1, 2022
Mar 1, 2022
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
132
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,635,894, US 11,263,441, to Feb 22, 2038. The term already ends on or before that date, so the cap shortened nothing.
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 runs 132 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Oct 13, 2017, when application 15/782,940, the earliest non-provisional in its chain, was filed (this one was filed Apr 22, 2020) | Oct 13, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +132 days, USPTO patent term adjustment record | Feb 22, 2038 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,635,894, US 11,263,441) | resolves to Feb 22, 2038, no earlier than this term, so no change | 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 22, 2038 | High confidence |
This family
| US 10,635,894 | In force Jun 2038 | Jun 2038 |
| US 11,244,152 | In force Feb 2038 | Feb 2038 |
| US 11,263,440 | In force Feb 2038 | Feb 2038 |
| US 11,263,439 | this patent Feb 2038 | Feb 2038 |
| US 11,263,441 | In force Feb 2038 | Feb 2038 |
| US 11,373,449 | In force Feb 2038 | Feb 2038 |
| US 11,263,442 | In force Feb 2038 | Feb 2038 |
| US 12,676,024 | In force Jul 2039 | Jul 2039 |
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 |
|---|---|---|---|
| May 7, 2020 Reel 52602, frame 932 | Genner, Gareth | T Stamp Inc. | Assignment of Assignor's Interest |
| Nov 21, 2024 Reel 69362, frame 398 | T Stamp Inc. | Sentilink Corp. | Security Interest |
| Jan 17, 2025 Reel 69918, frame 538 | Sentilink Corp. | T Stamp Inc. | Release of Security Interest |
| Jul 2, 2025 Reel 71800, frame 427 | T Stamp Inc. | Streeterville Capital, LLC | Security Interest |
| Oct 6, 2025 Reel 73010, frame 488 | Streeterville Capital, LLC | T Stamp 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
Feb 2038
Term ends Feb 22, 2038. Maintenance fees still fall due before then
Note
The 132 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,635,894, US 11,263,441, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2022 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.