Term ends Apr 9, 2038 · High confidence
20-year base term ends Apr 9, 2038
Held by Howso Incorporated
Filed Feb 21, 2022 as application 17/676,629 · Granted Dec 30, 2025
Base term plus 906 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2018
2038
Clock starts
Apr 9, 2018
Apr 9, 2018
Term ends
Apr 9, 2038
Apr 9, 2038
Granted
Dec 30, 2025
Dec 30, 2025
base term
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
906
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,816,980, US 10,816,981, US 10,817,750, US 11,262,742, US 11,385,633.
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.
7
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 906 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Apr 9, 2018, when application 15/948,805, the earliest non-provisional in its chain, was filed (this one was filed Feb 21, 2022) | Apr 9, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +906 days, USPTO patent term adjustment record | Oct 1, 2040 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,816,980, US 10,816,981, US 10,817,750, US 11,262,742, US 11,385,633) | capped to Apr 9, 2038 | 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 | Apr 9, 2038 | High confidence |
This family
| Application 15/948,805 | Abandoned not computed | not computed |
| US 10,816,980 | In force Apr 2038 | Apr 2038 |
| US 10,816,981 | In force Apr 2038 | Apr 2038 |
| US 10,817,750 | In force Apr 2038 | Apr 2038 |
| US 11,262,742 | In force Apr 2038 | Apr 2038 |
| US 11,385,633 | In force Apr 2038 | Apr 2038 |
| US 12,510,888 | this patent Apr 2038 | Apr 2038 |
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 |
|---|---|---|---|
| Feb 23, 2022 Reel 59075, frame 351 | Hazard, Christopher James | Diveplane Corporation | Assignment of Assignor's Interest |
| Jan 31, 2023 Reel 62554, frame 106 | Diveplane Corporation | Western Alliance Bank | Security Interest |
| Sep 22, 2023 Reel 65021, frame 691 | Diveplane Corporation | Howso Incorporated | Change of Name |
| Sep 28, 2023 Reel 65081, frame 559 | Diveplane Corporation | Howso Incorporated | Change of Name |
| Jan 22, 2025 Reel 69988, frame 38 | Western Alliance Bank | Howso Incorporated | Termination and Release of Intellectual Property Security Agreement |
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
Apr 2038
Term ends Apr 9, 2038. Maintenance fees still fall due before then
Note
The 906 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,816,980, US 10,816,981, US 10,817,750, US 11,262,742, US 11,385,633.
Citations
0
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.