Also listed on Zeronorth, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Mar 31, 2026 (First-Citizens Bank & Trust Company).
Term ends Oct 13, 2042 · High confidence
20-year base term ends Aug 2, 2041
Held by Harness Inc.
Filed Aug 2, 2021 as application 17/391,619 · Granted Jul 8, 2025
Base term plus 437 days of patent term adjustment (USPTO delay)
Today
2021
2042
Clock starts
Aug 2, 2021
Aug 2, 2021
Term ends
Oct 13, 2042
Oct 13, 2042
Granted
Jul 8, 2025
Jul 8, 2025
base term
patent term adjustment
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
437
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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 runs 437 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are 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 Aug 2, 2021, when this application, 17/391,619, was filed | Aug 2, 2041 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +437 days, USPTO patent term adjustment record | Oct 13, 2042 | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 13, 2042 | High confidence |
This family
| US 12,355,795 | this patent Oct 2042 | Oct 2042 |
| Application PCT/US2022/038056 | PCT application no patent term | no patent term |
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 4, 2021 Reel 58024, frame 729 | Walsh, Thaddeus William | Zeronorth, Inc. | Assignment of Assignor's Interest |
| Nov 4, 2021 Reel 59056, frame 832 | Hayes, Patrick | Zeronorth, Inc. | Employment Agreement |
| Mar 8, 2024 Reel 66769, frame 327 | Zeronorth, Inc.; Project Protect Merger Sub 1 | Zeronorth, Inc. | Merger |
| Jul 10, 2024 Reel 67954, frame 404 | Zeronorth, Inc.; Project Protect Merger Sub II, LLC | Project Protect Merger Sub II, LLC | Merger |
| Jul 12, 2024 Reel 67979, frame 848 | Project Protect Merger Sub II, LLC | Harness Inc. | Assignment of Assignor's Interest |
| Mar 31, 2026 Reel 74240, frame 665 | Harness Inc. | First-Citizens Bank & Trust Company | Security Interest |
| Mar 31, 2026 Reel 74240, frame 707 | Harness Inc. | First-Citizens Bank & Trust Company, as Agent | Security Interest |
| Aug 13, 2026 Reel 76210, frame 42 | Harness Inc. | First-Citizens Bank & Trust Company | Security Interest |
| Aug 18, 2026 Reel 75689, frame 62 | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Harness Inc.; Harness International, Inc. | Release of Security Interest |
| Aug 18, 2026 Reel 75689, frame 281 | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company, as Agent | Harness Inc.; Harness International, Inc. | Release of Security Interest |
| Aug 18, 2026 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Harness Inc. | Release of Security Interest |
| Aug 18, 2026 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company | Harness International, Inc. | Release of Security Interest |
| Aug 18, 2026 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company, as Agent | Harness Inc. | Release of Security Interest |
| Aug 18, 2026 reel/frame not recorded | Silicon Valley Bank, a Division of First-Citizens Bank & Trust Company, as Agent | Harness International, 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
Oct 2042
Term ends Oct 13, 2042. Maintenance fees still fall due before then
Note
The 437 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.