Term ends Apr 18, 2033 · Low confidence
20-year base term ends Apr 18, 2033
Held by Proterial, Ltd.
Filed Mar 28, 2024 as application 18/620,166 · Granted Oct 8, 2024
Base term, 20 years from filing
Today
2013
2033
Clock starts
Apr 18, 2013
Apr 18, 2013
Term ends
Apr 18, 2033
Apr 18, 2033
Granted
Oct 8, 2024
Oct 8, 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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,077,806, US 11,987,188, to Apr 18, 2033. The term already ends on or before that date, so the cap shortened nothing.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
9
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 2 maintenance fees are paid so far. Confidence: Low. 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 Apr 18, 2013, when application 13/865,881, the earliest non-provisional in its chain, was filed (this one was filed Mar 28, 2024); a parent in its chain could not be resolved (the next row) | Apr 18, 2033 | 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 | Disclaimer resolved from the filed document (refs US 11,077,806, US 11,987,188) | resolves to Apr 18, 2033, no earlier than this term, so no change | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 18, 2033 | Low confidence |
This family
| US 9,000,301 | In force Apr 2033 | Apr 2033 |
| US 9,862,336 | In force Apr 2033 | Apr 2033 |
| US 9,463,756 | In force Apr 2033 | Apr 2033 |
| US 9,902,347 | In force Apr 2033 | Apr 2033 |
| US 10,279,756 | In force no later than Apr 2033 | no later than Apr 2033 |
| US 11,077,806 | In force no later than Apr 2033 | no later than Apr 2033 |
| US 11,987,188 | In force Apr 2033 | Apr 2033 |
| US 12,109,954 | this patent Apr 2033 | Apr 2033 |
8 of 9 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Apr 2033
Term ends Apr 18, 2033. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,077,806, US 11,987,188, ends no earlier than this term, so it caps nothing.
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.