Collateral for a security interest recorded May 23, 2024 (Perceptive Credit Holdings IV, LP).
Term ends Jun 20, 2039 · High confidence
20-year base term ends Jun 12, 2039
Held by Impulse Dynamics N.V.
Filed Dec 10, 2020 as application 16/973,822 · Granted Feb 14, 2023
Base term plus 8 days of patent term adjustment (USPTO delay)
Today
2019
2039
Clock starts
Jun 12, 2019
Jun 12, 2019
Term ends
Jun 20, 2039
Jun 20, 2039
Granted
Feb 14, 2023
Feb 14, 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
8
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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 runs 8 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 Jun 12, 2019, when application PCT/IB2019/054909, the earliest non-provisional in its chain, was filed (this one was filed Dec 10, 2020) | Jun 12, 2039 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +8 days, USPTO patent term adjustment record | Jun 20, 2039 | 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 | Jun 20, 2039 | High confidence |
This family
| US 11,582,612 | this patent Jun 2039 | Jun 2039 |
| US 12,538,131 | In force Jun 2039 | Jun 2039 |
| Application 19/455,881 | Pending not computed | not computed |
3 of 4 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 |
|---|---|---|---|
| Feb 16, 2021 Reel 55263, frame 217 | Prutchi, David; Meyers, Jason | Impulse Dynamics N.V. | Assignment of Assignor's Interest |
| May 19, 2022 Reel 60120, frame 55 | Impulse Dynamics N.V. | Kennedy Lewis Investment Management LLC, as Collateral Agent | Intellectual Property Security Agreement |
| May 23, 2024 Reel 67526, frame 72 | Impulse Dynamics, N.v. | Perceptive Credit Holdings IV, LP | Security Interest |
| Oct 7, 2024 Reel 69118, frame 961 | Kennedy Lewis Investment Management LLC | Impulse Dynamics N.V. | 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
Jun 2039
Term ends Jun 20, 2039. Maintenance fees still fall due before then
Note
The 8 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is top 25% 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.