Term ends Apr 19, 2043 · High confidence
20-year base term ends May 19, 2042
Held by Vorbeck Materials Corp.
Filed May 19, 2022 as application 17/749,129 · Granted Sep 30, 2025
Base term plus 458 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2022
2043
Clock starts
May 19, 2022
May 19, 2022
Term ends
Apr 19, 2043
Apr 19, 2043
Granted
Sep 30, 2025
Sep 30, 2025
base term
patent term adjustment
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
458
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 12,270,927.
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.
19
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 458 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 19, 2022, when this application, 17/749,129, was filed | May 19, 2042 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +458 days, USPTO patent term adjustment record | Aug 20, 2043 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 12,270,927) | capped to Apr 19, 2043 | 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 19, 2043 | High confidence |
This family
| US 11,101,835 | In force Feb 2040 | Feb 2040 |
| US 11,265,410 | In force Jul 2040 | Jul 2040 |
| US 11,451,255 | In force Feb 2040 | Feb 2040 |
| US 11,722,592 | In force Jul 2040 | Jul 2040 |
| Application 17/724,485 | Abandoned not computed | not computed |
| Application 17/735,082 | Abandoned not computed | not computed |
| US 12,431,932 | this patent Apr 2043 | Apr 2043 |
| US 12,200,158 | In force Mar 2041 | Mar 2041 |
8 of 19 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
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
Apr 2043
Term ends Apr 19, 2043. Maintenance fees still fall due before then
Note
The 458 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 12,270,927.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2025 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.