Collateral for a security interest recorded Jun 30, 2023 (Cibc Bank USA).
Term ends Feb 2, 2038 · High confidence
20-year base term ends Oct 28, 2036
Held by Vertical Pharmaceuticals, LLC
Filed Apr 27, 2018 as application 15/965,285 · Granted Jun 13, 2023
Base term plus 462 days of patent term adjustment (USPTO delay)
Today
2016
2038
Clock starts
Oct 28, 2016
Oct 28, 2016
Term ends
Feb 2, 2038
Feb 2, 2038
Granted
Jun 13, 2023
Jun 13, 2023
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
462
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.
3
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 462 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 Oct 28, 2016, when application PCT/US2016/059577, the earliest non-provisional in its chain, was filed (this one was filed Apr 27, 2018) | Oct 28, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +462 days, USPTO patent term adjustment record | Feb 2, 2038 | 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 | Feb 2, 2038 | High confidence |
This family
| Application PCT/US2016/059577 | PCT application no patent term | no patent term |
| US 11,672,738 | this patent Feb 2038 | Feb 2038 |
| Application 18/141,680 | Abandoned 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 27, 2018 Reel 46216, frame 501 | Domingo, Casidy; Chiu, Edmond | Acelrx Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Jun 27, 2018 Reel 46216, frame 516 | Blackwood, Bradley | Cito Mechanical Design, Inc. | Assignment of Assignor's Interest |
| Jun 27, 2018 Reel 46216, frame 524 | Cito Mechanical Design, Inc. | Acelrx Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Apr 13, 2023 Reel 63318, frame 410 | Acelrx Pharmaceuticals, Inc. | Vertical Pharmaceuticals, LLC | Assignment of Assignor's Interest |
| Jun 30, 2023 Reel 64133, frame 94 | Vertical Pharmaceuticals, LLC | Cibc Bank USA | 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
Feb 2038
Term ends Feb 2, 2038. Maintenance fees still fall due before then
Note
The 462 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2023 in our data, the only group it is compared against.
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.