Term ends Jan 24, 2044 · Medium confidence
20-year base term ends Dec 27, 2043
Why Medium: A parent in the chain could not be resolved.
Held by Quantum Generative Materials LLC
Filed Sep 18, 2024 as application 18/889,200 · Granted Apr 14, 2026
Base term plus 28 days of patent term adjustment (USPTO delay)
Today
2023
2044
Clock starts
Dec 27, 2023
Dec 27, 2023
Term ends
Jan 24, 2044
Jan 24, 2044
Granted
Apr 14, 2026
Apr 14, 2026
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
28
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.
5
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 28 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 Dec 27, 2023, when application 18/397,993, the earliest non-provisional in its chain, was filed (this one was filed Sep 18, 2024); a parent in its chain could not be resolved (the next row) | Dec 27, 2043 | 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 | +28 days, USPTO patent term adjustment record | Jan 24, 2044 | 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 24, 2044 | Medium confidence |
This family
| Application 18/397,993 | Abandoned not computed | not computed |
| Application 18/600,486 | Abandoned not computed | not computed |
| US 12,603,701 | this patent Jan 2044 | Jan 2044 |
| US 12,587,274 | In force Dec 2043 | Dec 2043 |
| US 12,627,372 | In force Dec 2043 | Dec 2043 |
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 |
|---|---|---|---|
| Aug 21, 2025 Reel 72088, frame 988 | Prasad, Niraj; Prasad, Deeptanshu | Quantum Generative Materials LLC | 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
Jan 2044
Term ends Jan 24, 2044. Maintenance fees still fall due before then
Note
The 28 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
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.