Lapsed Apr 26, 2026 on the fee record · High confidence
20-year base term ends Jan 24, 2039
First maintenance fee unpaid; grace period ended.
Filed Jan 24, 2019 as application 16/256,688 · Granted Apr 26, 2022
Base term, 20 years from filing, plus 351 days of patent term adjustment (USPTO delay)
Today
Lapsed Apr 26, 2026
2019
2040
Clock starts
Jan 24, 2019
Jan 24, 2019
No longer in force
Apr 26, 2026
Apr 26, 2026
Granted
Apr 26, 2022
Apr 26, 2022
Term would have run to
Jan 10, 2040
Jan 10, 2040
base term
patent term adjustment
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
351
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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 Jan 10, 2040: its 20-year base term plus 351 days of term 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 Jan 24, 2019, when this application, 16/256,688, was filed | Jan 24, 2039 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +351 days, USPTO patent term adjustment record | Jan 10, 2040 | 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 Apr 26, 2026 | High confidence |
| Computed term end | The steps above, in order | Apr 26, 2026 | High confidence |
This family
| US 11,312,781 | this patent Apr 2026 | Apr 2026 |
| US 12,227,580 | In force Oct 2039 | Oct 2039 |
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 24, 2019 Reel 48977, frame 906 | Holmes, Steve | Capella Bioscience Ltd. | Assignment of Assignor's Interest |
| Oct 4, 2021 Reel 57710, frame 82 | Apcintex Limited; Janpix Limited; Capella Bioscience Ltd.; Lockbody Therapeutics Ltd.; Ultrahuman Two Limited; Ultrahuman Four Limited; Morphogen-IX Limited; Orexia Therapeutics Limited; Cardiokine Biopharma LLC; Palladio Biosciences, Inc.; Pearlriver Bio GmbH; Z Factor Limited | Cocoon S.A. LLC | Security Interest |
| Sep 28, 2023 Reel 65056, frame 399 | Capella Bioscience Ltd. | Centessa Pharmaceuticals (UK) Limited | Assignment of Assignor's Interest |
| Sep 28, 2023 Reel 65056, frame 455 | Holmes, Steve | Capella Bioscience Ltd. | Assignment of Assignor's Interest |
| Dec 31, 2024 Reel 69708, frame 39 | Centessa Pharmaceuticals (UK) Limited | Oxford Finance LLC | Security Interest |
| Jun 12, 2026 Reel 75737, frame 1 | Cocoon S.A. LLC | Apcintex Limited; Janpix Limited; Capella Bioscience Ltd.; Lockbody Therapeutics Ltd.; Ultrahuman Two Limited; Ultrahuman Four Limited; Morphogen-IX Limited; Orexia Therapeutics Limited; Cardiokine Biopharma LLC; Centessa Biosciences, Inc.; Pearlriver Bio GmbH; Z Factor Limited | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Apcintex Limited | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Janpix Limited | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Capella Bioscience Ltd. | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Lockbody Therapeutics Ltd. | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Ultrahuman Two Limited | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Ultrahuman Four Limited | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Morphogen-IX Limited | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Orexia Therapeutics Limited | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Cardiokine Biopharma LLC | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Centessa Biosciences, Inc. | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Pearlriver Bio GmbH | Release of Security Interest |
| Jun 12, 2026 reel/frame not recorded | Cocoon S.A. LLC | Z Factor Limited | Release of Security Interest |
| Jun 24, 2026 Reel 75069, frame 879 | Oxford Finance LLC | Centessa Pharmaceuticals (UK) Limited | Release of Security 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
Note
The 351 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is above the median 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.