Also listed on Imagenebio, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 29, 2040 · High confidence
20-year base term ends May 29, 2040
Held by The Ehe Foundation
Filed Jun 16, 2023 as application 18/336,562 · Granted Mar 17, 2026
Base term, 20 years from filing
Today
2020
2040
Clock starts
May 29, 2020
May 29, 2020
Term ends
May 29, 2040
May 29, 2040
Granted
Mar 17, 2026
Mar 17, 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 11,760,728, to May 29, 2040. 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.
3
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: 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 May 29, 2020, when application 16/886,926, the earliest non-provisional in its chain, was filed (this one was filed Jun 16, 2023) | May 29, 2040 | 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 | Disclaimer resolved from the filed document (refs US 11,760,728) | resolves to May 29, 2040, 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 | May 29, 2040 | High confidence |
This family
| US 11,274,082 | In force May 2040 | May 2040 |
| US 11,760,728 | In force May 2040 | May 2040 |
| US 12,577,208 | this patent May 2040 | May 2040 |
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 6, 2023 Reel 65149, frame 234 | Castro, Alfredo C. | Ikena Oncology, Inc. | Assignment of Assignor's Interest |
| Dec 23, 2025 Reel 73522, frame 31 | Ikena Oncology, Inc. | Imagenebio, Inc. | Change of Name |
| Feb 4, 2026 Reel 73689, frame 13 | Imagenebio, Inc. | The Ehe Foundation | 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.
What's changing
May 2040
Term ends May 29, 2040. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,760,728, 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.