Lapsed Aug 25, 2024 on the fee record · High confidence
20-year base term ends Jun 14, 2037
First maintenance fee unpaid; grace period ended.
Held by Cardea Bio, Inc.
Filed Jul 25, 2019 as application 16/522,566 · Granted Aug 25, 2020
Base term, 20 years from filing
Today
Lapsed Aug 25, 2024
2017
2037
Clock starts
Jun 14, 2017
Jun 14, 2017
No longer in force
Aug 25, 2024
Aug 25, 2024
Granted
Aug 25, 2020
Aug 25, 2020
Term would have run to
Jun 14, 2037
Jun 14, 2037
base term
after the term ends
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 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.
2
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 Jun 14, 2037: its 20-year base term, with no adjustment for prosecution delay. 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 14, 2017, when application 15/623,169, the earliest non-provisional in its chain, was filed (this one was filed Jul 25, 2019) | Jun 14, 2037 | 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 3 maintenance fees paid | lapsed Aug 25, 2024 | High confidence |
| Computed term end | The steps above, in order | Aug 25, 2024 | High confidence |
This family
| US 10,759,157 | In force Apr 2038 | Apr 2038 |
| US 10,751,986 | this patent Aug 2024 | Aug 2024 |
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 |
|---|---|---|---|
| Jul 21, 2020 Reel 53272, frame 79 | Lerner, Mitchell; Pan, Deng; Goldsmith, Brett; Afsahi, Savannah J. | Nanomedical Diagnostics, Inc. | Assignment of Assignor's Interest |
| Dec 21, 2022 Reel 62202, frame 287 | Nanomedical Diagnostics, Inc. | Cardea Bio, Inc. | Change of Name |
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
8
later US patents cite this one
That is top 25% of utility patents granted in 2020 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.