Term ends Oct 20, 2037 · Medium confidence
20-year base term ends Sep 8, 2041
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 11,260,035), so the cap could be lower.
Held by PST Therapy Ltd.
Filed Sep 8, 2021 as application 17/469,012 · Granted Dec 30, 2025
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
2021
2041
Clock starts
Sep 8, 2021
Sep 8, 2021
Term ends
Oct 20, 2037
Oct 20, 2037
Granted
Dec 30, 2025
Dec 30, 2025
base term
after the term ends
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,260,035.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
4
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 2 maintenance fees are paid so far. Confidence: Medium. 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 Sep 8, 2021, when this application, 17/469,012, was filed | Sep 8, 2041 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,260,035) | capped to Oct 20, 2037 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 20, 2037 | Medium confidence |
This family
| US 12,508,221 | this patent Oct 2037 | Oct 2037 |
| Application PCT/US2022/012912 | PCT application no patent term | no patent term |
| Application 17/578,698 | Pending not computed | not computed |
| Application 19/561,686 | 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 |
|---|---|---|---|
| Jun 2, 2022 Reel 60087, frame 448 | PS Therapy Ltd. | PS Therapy, Inc. | Assignment of Assignor's Interest |
| Nov 25, 2024 Reel 69399, frame 587 | Goskonda, Venkat R; Nallakrishnan, Ravi | PST Therapy Ltd. | 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.
What's changing
Oct 2037
Term ends Oct 20, 2037. Maintenance fees still fall due before then
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,260,035.
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.