Collateral for a security interest recorded Sep 16, 2025 (First-Citizens Bank & Trust Company).
Term ends Nov 16, 2035 · High confidence
20-year base term ends Nov 16, 2035
Held by Eight Sleep Inc.
Filed Jan 17, 2025 as application 19/028,155 · Granted Aug 19, 2025
Base term, 20 years from filing
Today
2015
2035
Clock starts
Nov 16, 2015
Nov 16, 2015
Term ends
Nov 16, 2035
Nov 16, 2035
Granted
Aug 19, 2025
Aug 19, 2025
base term
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 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.
12
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 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 Nov 16, 2015, when application 14/942,458, the earliest non-provisional in its chain, was filed (this one was filed Jan 17, 2025) | Nov 16, 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 | None on record | no cap applied | 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 | Nov 16, 2035 | High confidence |
This family
| Application 14/942,458 | Abandoned not computed | not computed |
| Application PCT/US2016/029889 | PCT application no patent term | no patent term |
| Application 15/178,132 | Abandoned not computed | not computed |
| US 10,105,092 | In force Nov 2035 | Nov 2035 |
| Application PCT/US2017/024370 | PCT application no patent term | no patent term |
| US 11,266,348 | In force Feb 2037 | Feb 2037 |
| Application 17/585,043 | Abandoned not computed | not computed |
| Application 17/902,238 | Abandoned not computed | not computed |
8 of 12 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 |
|---|---|---|---|
| Apr 22, 2025 Reel 70914, frame 311 | Franceschetti, Matteo; Andreasi Bassi, Massimo | Eight Sleep Inc. | Assignment of Assignor's Interest |
| Sep 16, 2025 Reel 72878, frame 573 | Eight Sleep Inc. | First-Citizens Bank & Trust Company | Supplement No. 2 to Amended and Restated Intellectual Property Security Agreement |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Nov 2035
Term ends Nov 16, 2035. 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.