Term ends Apr 1, 2039 · Medium confidence
20-year base term ends Nov 5, 2038
Why Medium: A parent in the chain could not be resolved.
Held by Aleddra Inc.
Filed Jan 25, 2023 as application 18/101,569 · Granted Oct 22, 2024
Base term plus 147 days of patent term adjustment (USPTO delay)
Today
2018
2039
Clock starts
Nov 5, 2018
Nov 5, 2018
Term ends
Apr 1, 2039
Apr 1, 2039
Granted
Oct 22, 2024
Oct 22, 2024
base term
patent term adjustment
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
147
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.
22
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 runs 147 days past its 20-year base term on 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 Nov 5, 2018, when application 16/180,416, the earliest non-provisional in its chain, was filed (this one was filed Jan 25, 2023); a parent in its chain could not be resolved (the next row) | Nov 5, 2038 | 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 | +147 days, USPTO patent term adjustment record | Apr 1, 2039 | 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 | Apr 1, 2039 | Medium confidence |
This family
| US 10,874,762 | In force Feb 2039 | Feb 2039 |
| US 11,103,612 | In force Nov 2038 | Nov 2038 |
| US 11,191,863 | In force Nov 2038 | Nov 2038 |
| Application 17/509,877 | Abandoned not computed | not computed |
| US 12,048,078 | In force Apr 2039 | Apr 2039 |
| US 12,127,314 | this patent Apr 2039 | Apr 2039 |
| US 12,251,572 | In force Jul 2039 | Jul 2039 |
| US 12,317,386 | In force Aug 2039 | Aug 2039 |
8 of 22 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 25, 2023 Reel 62489, frame 558 | Maa, Chia-yiu; Yu, Chun-te | Aleddra 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Apr 2039
Term ends Apr 1, 2039. Maintenance fees still fall due before then
Note
The 147 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
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.