Lapsed Feb 22, 2026 on the fee record · Medium confidence
20-year base term ends Jul 18, 2036
Why Medium: A parent in the chain could not be resolved.
First maintenance fee unpaid; grace period ended.
Held by Case Western Reserve University
Filed Sep 24, 2020 as application 17/030,793 · Granted Feb 22, 2022
Base term, 20 years from filing
Today
Lapsed Feb 22, 2026
2016
2036
Clock starts
Jul 18, 2016
Jul 18, 2016
No longer in force
Feb 22, 2026
Feb 22, 2026
Granted
Feb 22, 2022
Feb 22, 2022
Term would have run to
Jul 18, 2036
Jul 18, 2036
base term
after the term ends
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 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.
5
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jul 18, 2036: its 20-year base term, with no adjustment for prosecution delay. 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 Jul 18, 2016, when application PCT/US2016/042708, the earliest non-provisional in its chain, was filed (this one was filed Sep 24, 2020); a parent in its chain could not be resolved (the next row) | Jul 18, 2036 | 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 | 0 of 3 maintenance fees paid | lapsed Feb 22, 2026 | High confidence |
| Computed term end | The steps above, in order | Feb 22, 2026 | Medium confidence |
This family
| Application PCT/US2016/042708 | PCT application no patent term | no patent term |
| US 10,478,510 | In force Jul 2036 | Jul 2036 |
| US 10,874,747 | In force Jul 2036 | Jul 2036 |
| US 11,253,610 | this patent Feb 2026 | Feb 2026 |
| US 11,738,090 | In force no later than Jul 2036 | no later than Jul 2036 |
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 19, 2025 Reel 70253, frame 664 | Case Western Reserve University | National Science Foundation | Confirmatory License |
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.
Citations
11
later US patents cite this one
That is top 10% of utility patents granted in 2022 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.