Collateral for a security interest recorded Dec 22, 2025 (HSBC Bank USA, N.A.).
Term ends Jan 12, 2038 · Medium confidence
20-year base term ends Jan 12, 2038
Why Medium: A parent in the chain could not be resolved.
Held by Pivot Bio, Inc.
Filed Nov 15, 2018 as application 16/192,738 · Granted Jan 31, 2023
Base term, 20 years from filing
Today
2018
2038
Clock starts
Jan 12, 2018
Jan 12, 2018
Term ends
Jan 12, 2038
Jan 12, 2038
Granted
Jan 31, 2023
Jan 31, 2023
base term
fee events
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.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
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. 1 of 3 maintenance fees is 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 12, 2018, when application PCT/US2018/013671, the earliest non-provisional in its chain, was filed (this one was filed Nov 15, 2018); a parent in its chain could not be resolved (the next row) | Jan 12, 2038 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 12, 2038 | Medium confidence |
This family
| Application PCT/US2018/013671 | PCT application no patent term | no patent term |
| Application 16/159,542 | Abandoned not computed | not computed |
| US 11,565,979 | this patent Jan 2038 | Jan 2038 |
| US 12,686,650 | In force Mar 2040 | Mar 2040 |
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 |
|---|---|---|---|
| Jan 29, 2019 Reel 48164, frame 603 | Temme, Karsten; Tamsir, Alvin; Bloch, Sarah; Clark, Rosemary; Tung, Emily; Hammill, Kevin; Higgins, Douglas; Davis-richardson, Austin | Pivot Bio, Inc. | Assignment of Assignor's Interest |
| Mar 26, 2021 Reel 55743, frame 625 | Pivot Bio, Inc. | Hercules Capital, Inc., as Agent | Intellectual Property Security Agreement |
| Nov 7, 2025 Reel 73567, frame 605 | Hercules Capital Inc., as Agent | Pivot Bio, Inc. | Reassignment and Release of Security Interest at Reel/Frame No. 55743/0625 |
| Dec 22, 2025 Reel 73285, frame 20 | Pivot Bio, Inc. | HSBC Bank USA, N.A. | 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
Jan 2038
Term ends Jan 12, 2038. Maintenance fees still fall due before then
Citations
36
later US patents cite this one
That is top 5% 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.