Term ends Jun 13, 2039 · Low confidence
20-year base term ends Jun 13, 2039
Held by Unity Biotechnology, Inc.
Filed Jun 3, 2021 as application 17/338,368 · Granted Feb 11, 2025
Base term plus 822 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2019
2039
Clock starts
Jun 13, 2019
Jun 13, 2019
Term ends
Jun 13, 2039
Jun 13, 2039
Granted
Feb 11, 2025
Feb 11, 2025
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
822
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 10,717,722, US 10,981,892.
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.
6
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 822 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 3 maintenance fees are paid so far. Confidence: Low. 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 13, 2019, when application PCT/US2019/037067, the earliest non-provisional in its chain, was filed (this one was filed Jun 3, 2021); a parent in its chain could not be resolved (the next row) | Jun 13, 2039 | 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 | +822 days, USPTO patent term adjustment record | Sep 12, 2041 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,717,722, US 10,981,892) | capped to Jun 13, 2039 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 13, 2039 | Low confidence |
This family
| Application PCT/US2019/037067 | PCT application no patent term | no patent term |
| US 10,717,722 | In force Jun 2039 | Jun 2039 |
| Application 16/888,197 | Abandoned not computed | not computed |
| US 10,981,892 | In force no later than Jun 2039 | no later than Jun 2039 |
| US 12,221,433 | this patent Jun 2039 | Jun 2039 |
| Application 18/999,576 | 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 |
|---|---|---|---|
| Aug 16, 2021 Reel 57188, frame 378 | Beausoleil, Anne-marie; Hudson, Ryan | Unity Biotechnology, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2039
Term ends Jun 13, 2039. Maintenance fees still fall due before then
Note
The 822 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 10,717,722, US 10,981,892.
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.