Term ends May 25, 2043 · High confidence
20-year base term ends May 25, 2043
Held by Imagenebio, Inc.
Filed May 25, 2023 as application 18/323,700 · Granted Jan 23, 2024
Base term, 20 years from filing
Today
2023
2043
Clock starts
May 25, 2023
May 25, 2023
Term ends
May 25, 2043
May 25, 2043
Granted
Jan 23, 2024
Jan 23, 2024
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
None
Term adjustment
No prosecution delay on this record.
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.
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. 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 25, 2023, when this application, 18/323,700, was filed | May 25, 2043 | 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 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | May 25, 2043 | High confidence |
This family
| US 11,878,958 | this patent May 2043 | May 2043 |
| US 12,459,895 | In force Jun 2043 | Jun 2043 |
| Application 19/355,035 | 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 |
|---|---|---|---|
| Jul 10, 2023 Reel 64199, frame 340 | Castro, Alfredo C.; Burke, Michael J.; Wynn, Thomas A.; Ruppel, Sabine K.; Santillana Soto, Sergio L.; Haines, Eric; Xu, Lan; Zavidij, Oksana | Ikena Oncology, Inc. | Assignment of Assignor's Interest |
| Dec 23, 2025 Reel 73522, frame 31 | Ikena Oncology, Inc. | Imagenebio, Inc. | Change of Name |
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
May 2043
Term ends May 25, 2043. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 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.