Term ends no later than Oct 23, 2029 · Medium confidence
20-year base term ends Jan 29, 2029
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Nevro Corp.
Filed Jan 26, 2021 as application 17/159,044 · Granted Jan 30, 2024
Base term plus 267 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Jan 29, 2009
Jan 29, 2009
Ends no later than
Oct 23, 2029
Oct 23, 2029
Granted
Jan 30, 2024
Jan 30, 2024
base term
patent term adjustment
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
267
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
9
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 267 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 0 of 1 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 Jan 29, 2009, when application 12/362,244, the earliest non-provisional in its chain, was filed (this one was filed Jan 26, 2021) | Jan 29, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +267 days, USPTO patent term adjustment record | Oct 23, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Oct 23, 2029 | Medium confidence |
This family
| US 8,255,057 | In force no later than May 2030 | no later than May 2030 |
| US 8,509,906 | In force Jan 2029 | Jan 2029 |
| US 8,849,410 | In force no later than Jan 2029 | no later than Jan 2029 |
| US 9,403,013 | In force no later than Jan 2029 | no later than Jan 2029 |
| US 10,173,065 | In force Jan 2029 | Jan 2029 |
| US 10,179,241 | In force Jan 2029 | Jan 2029 |
| US 10,918,867 | In force May 2029 | May 2029 |
| US 11,883,670 | this patent no later than Oct 2029 | no later than Oct 2029 |
8 of 9 applications in this family shown, earliest filings first. 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 16, 2021 Reel 56566, frame 915 | Fang, Zi-ping; Caparso, Anthony V.; Walker, Andre B. | Nevro Corp. | Assignment of Assignor's Interest |
| Dec 1, 2023 Reel 65744, frame 302 | Nevro Corp. | Wilmington Trust, National Association, as Agent | Patent Security Agreement |
| Apr 4, 2025 Reel 70743, frame 1 | Wilmington Trust, National Association, as Agent | Nevro Corp. | 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 2029
Term ends no later than Oct 23, 2029. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 267 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Oct 23, 2029. We will not guess the cap.
Citations
1
later US patent cites this one
Fewer than half of the utility patents granted in 2024 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.