Term ends Apr 28, 2034 · High confidence
20-year base term ends Apr 28, 2034
Held by Cardea Bio, Inc.
Filed Aug 13, 2021 as application 17/402,361 · Granted Jul 29, 2025
Base term plus 1021 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2014
2034
Clock starts
Apr 28, 2014
Apr 28, 2014
Term ends
Apr 28, 2034
Apr 28, 2034
Granted
Jul 29, 2025
Jul 29, 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
1,021
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,092,598, US 11,215,580, US 11,536,722.
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.
7
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 runs 1021 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Apr 28, 2014, when application 14/263,954, the earliest non-provisional in its chain, was filed (this one was filed Aug 13, 2021) | Apr 28, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1021 days, USPTO patent term adjustment record | Feb 12, 2037 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,092,598, US 11,215,580, US 11,536,722) | capped to Apr 28, 2034 | 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 | Apr 28, 2034 | High confidence |
This family
| US 9,618,476 | In force Apr 2034 | Apr 2034 |
| US 9,765,395 | In force Aug 2034 | Aug 2034 |
| Application 14/873,115 | Abandoned not computed | not computed |
| Application 14/884,705 | Abandoned not computed | not computed |
| US 11,092,598 | In force Apr 2034 | Apr 2034 |
| US 11,215,580 | In force Aug 2034 | Aug 2034 |
| US 12,372,521 | this patent Apr 2034 | Apr 2034 |
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 |
|---|---|---|---|
| Oct 19, 2022 Reel 61472, frame 325 | Goldsmith, Brett | Cardea Bio, Inc. | Assignment of Assignor's 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.
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Alerts on its grants, lapses and transfers.
What's changing
Apr 2034
Term ends Apr 28, 2034. Maintenance fees still fall due before then
Note
The 1021 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,092,598, US 11,215,580, US 11,536,722.
Citations
1
later US patent cites 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.