Term ends Jan 7, 2042 · Medium confidence
20-year base term ends Jan 7, 2042
Why Medium: A parent in the chain could not be resolved.
Held by Cellanome, Inc.
Filed Sep 3, 2025 as application 19/318,315 · Granted Mar 17, 2026
Base term, 20 years from filing
Today
2022
2042
Clock starts
Jan 7, 2022
Jan 7, 2022
Term ends
Jan 7, 2042
Jan 7, 2042
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.
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.
18
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: 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 Jan 7, 2022, when application PCT/US2022/011720, the earliest non-provisional in its chain, was filed (this one was filed Sep 3, 2025); a parent in its chain could not be resolved (the next row) | Jan 7, 2042 | 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 | 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 | Jan 7, 2042 | Medium confidence |
This family
| Application PCT/US2022/011720 | PCT application no patent term | no patent term |
| Application 17/669,315 | Abandoned not computed | not computed |
| US 11,554,370 | In force Jan 2042 | Jan 2042 |
| Application 17/896,742 | Abandoned not computed | not computed |
| US 12,030,047 | In force no later than Jan 2042 | no later than Jan 2042 |
| US 12,151,242 | In force no later than Jan 2042 | no later than Jan 2042 |
| US 12,303,892 | In force Jan 2042 | Jan 2042 |
| US 12,440,837 | In force Jan 2042 | Jan 2042 |
8 of 18 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 |
|---|---|---|---|
| Jan 30, 2026 Reel 73641, frame 471 | Khurana, Tarun Kumar; Agah, Ali; Wu, Yir-shyuan; Yasar, Filiz Gorpe; Norviel, Vernon A. | Cellanome, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Jan 2042
Term ends Jan 7, 2042. Maintenance fees still fall due before then
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.