Term ends Oct 14, 2030 · High confidence
20-year base term ends Oct 14, 2030
Held by Daramic, LLC
Filed Mar 11, 2024 as application 18/601,049 · Granted Feb 25, 2025
Base term, 20 years from filing
Today
2010
2030
Clock starts
Oct 14, 2010
Oct 14, 2010
Term ends
Oct 14, 2030
Oct 14, 2030
Granted
Feb 25, 2025
Feb 25, 2025
base term
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.
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.
5
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. 0 of 1 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 14, 2010, when application 12/904,371, the earliest non-provisional in its chain, was filed (this one was filed Mar 11, 2024) | Oct 14, 2030 | 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 | None on record | no cap applied | High 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 | Oct 14, 2030 | High confidence |
This family
| US 9,935,302 | In force Oct 2030 | Oct 2030 |
| Application PCT/US2010/053008 | PCT application no patent term | no patent term |
| US 10,833,306 | In force Oct 2030 | Oct 2030 |
| US 11,942,655 | In force Oct 2032 | Oct 2032 |
| US 12,237,534 | this patent Oct 2030 | Oct 2030 |
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 12, 2026 Reel 74315, frame 795 | Daramic, LLC | Encina Private Credit SPV 2, LLC, as Collateral Agent | Short-Form Patents Security Agreement |
| Apr 22, 2026 Reel 75435, frame 811 | Encina Private Credit SPV 2, LLC, as Resigning Agent | Acf Finco I LP, as Successor Agent | Assignment of Security Interests in Patent Collateral |
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 2030
Term ends Oct 14, 2030. Maintenance fees still fall due before then
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.