Term ends Aug 7, 2039 · High confidence
20-year base term ends Feb 19, 2039
Held by Power Hero Corp.
Filed Nov 23, 2021 as application 17/533,706 · Granted Mar 18, 2025
Base term plus 644 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2019
2039
Clock starts
Feb 19, 2019
Feb 19, 2019
Term ends
Aug 7, 2039
Aug 7, 2039
Granted
Mar 18, 2025
Mar 18, 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
644
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 10,960,782.
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 644 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 Feb 19, 2019, when application 16/279,426, the earliest non-provisional in its chain, was filed (this one was filed Nov 23, 2021) | Feb 19, 2039 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +644 days, USPTO patent term adjustment record | Nov 24, 2040 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,960,782) | capped to Aug 7, 2039 | 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 | Aug 7, 2039 | High confidence |
This family
| US 10,960,782 | In force Aug 2039 | Aug 2039 |
| US 11,623,537 | In force Jul 2039 | Jul 2039 |
| US 12,252,025 | this patent Aug 2039 | Aug 2039 |
| US 12,630,033 | In force Apr 2042 | Apr 2042 |
| Application PCT/US2022/029433 | PCT application no patent term | no patent term |
| US 12,036,883 | In force Feb 2039 | Feb 2039 |
| Application 19/671,011 | Pending not computed | not computed |
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 24, 2021 Reel 58204, frame 475 | Goei, Esmond; Cloud, Steve | Power Hero Corp. | Assignment of Assignor's 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
Aug 2039
Term ends Aug 7, 2039. Maintenance fees still fall due before then
Note
The 644 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 10,960,782.
Citations
13
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.