Collateral for a security interest recorded Jun 30, 2023 (Hercules Capital, Inc.).
Term ends Mar 8, 2039 · Medium confidence
20-year base term ends Mar 8, 2039
Why Medium: A parent in the chain could not be resolved.
Held by Compass Pathfinder Limited
Filed Apr 17, 2023 as application 18/301,790 · Granted Apr 7, 2026
Base term, 20 years from filing
Today
2019
2039
Clock starts
Mar 8, 2019
Mar 8, 2019
Term ends
Mar 8, 2039
Mar 8, 2039
Granted
Apr 7, 2026
Apr 7, 2026
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,136,293, US 11,661,617, to Mar 8, 2039. The term already ends on or before that date, so the cap shortened nothing.
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.
4
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 3 maintenance fees are paid so far. 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 Mar 8, 2019, when application PCT/US2019/021489, the earliest non-provisional in its chain, was filed (this one was filed Apr 17, 2023); a parent in its chain could not be resolved (the next row) | Mar 8, 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 | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,136,293, US 11,661,617) | resolves to Mar 8, 2039, no earlier than this term, so no change | High 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 | Mar 8, 2039 | Medium confidence |
This family
| US 11,661,617 | In force Mar 2039 | Mar 2039 |
| US 11,136,293 | In force Mar 2039 | Mar 2039 |
| US 12,595,497 | this patent Mar 2039 | Mar 2039 |
3 of 4 applications in this family shown, earliest filings first. 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 25, 2023 Reel 63428, frame 63 | Protzko, Ryan | New Atlas Biotechnologies LLC | Assignment of Assignor's Interest |
| Apr 25, 2023 Reel 63428, frame 70 | New Atlas Biotechnologies LLC | Compass Pathfinder Limited | Assignment of Assignor's Interest |
| Jun 30, 2023 Reel 64184, frame 68 | Compass Pathways PLC; Compass Pathfinder Holdings Limited; Compass Pathfinder Limited; Compass Pathways, Inc. | Hercules Capital, Inc. | Patent Security Agreement |
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
Mar 2039
Term ends Mar 8, 2039. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,136,293, US 11,661,617, ends no earlier than this term, so it caps nothing.
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.