Collateral for a security interest recorded Aug 28, 2024 (Midcap Funding IV Trust).
Term ends Jun 12, 2035 · High confidence
20-year base term ends Jun 12, 2035
Held by Aspen Aerogels, Inc.
Filed Jan 27, 2023 as application 18/160,369 · Granted Jan 9, 2024
Base term, 20 years from filing
Today
2015
2035
Clock starts
Jun 12, 2015
Jun 12, 2015
Term ends
Jun 12, 2035
Jun 12, 2035
Granted
Jan 9, 2024
Jan 9, 2024
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,380,953, to Jun 12, 2035. The term already ends on or before that date, so the cap shortened nothing.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
8
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 2 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 Jun 12, 2015, when application 14/738,193, the earliest non-provisional in its chain, was filed (this one was filed Jan 27, 2023) | Jun 12, 2035 | 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 | Disclaimer resolved from the filed document (refs US 11,380,953) | resolves to Jun 12, 2035, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 12, 2035 | High confidence |
This family
| Application 62/015,757 | Provisional application no patent term | no patent term |
| US 11,380,953 | In force Jun 2036 | Jun 2036 |
| Application PCT/US2015/035727 | PCT application no patent term | no patent term |
| US 11,588,196 | In force no later than Jun 2035 | no later than Jun 2035 |
| US 11,658,361 | In force no later than Jun 2035 | no later than Jun 2035 |
| US 11,870,084 | this patent Jun 2035 | Jun 2035 |
| US 12,100,848 | In force Jun 2035 | Jun 2035 |
| Application 18/761,114 | Pending 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 |
|---|---|---|---|
| Nov 21, 2023 Reel 65635, frame 34 | Evans, Owen; Zafiropoulos, Nicholas Anthony; White, Shannon Olga; Dong, Wenting; Rhine, Wendell | Aspen Aerogels, Inc. | Assignment of Assignor's Interest |
| Aug 28, 2024 Reel 68792, frame 245 | Aspen Aerogels, Inc.; Aspen Aerogels Rhode Island, LLC | Midcap Funding IV Trust | 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 2035
Term ends Jun 12, 2035. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,380,953, ends no earlier than this term, so it caps nothing.
Citations
2
later US patents cite 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
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.