Lapsed Aug 18, 2024 on the fee record · Low confidence
20-year base term ends Dec 22, 2031
First maintenance fee unpaid; grace period ended.
No current holder resolved from the recorded chain.
Filed Sep 13, 2018 as application 16/129,820 · Granted Aug 18, 2020
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
Lapsed Aug 18, 2024
2011
2031
Clock starts
Dec 22, 2011
Dec 22, 2011
No longer in force
Aug 18, 2024
Aug 18, 2024
Granted
Aug 18, 2020
Aug 18, 2020
Term would have run to
May 19, 2030
May 19, 2030
base term
after the term ends
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.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,122,751, US 9,363,279, US 9,762,605.
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.
8
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to May 19, 2030: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Dec 22, 2011, when the earliest non-provisional application in its chain was filed (this one was filed Sep 13, 2018); a parent in its chain could not be resolved (the next row) | Dec 22, 2031 | 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 10,122,751, US 9,363,279, US 9,762,605) | capped to May 19, 2030 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | lapsed Aug 18, 2024 | High confidence |
| Further caveats on record | The record names parents not resolved: 15696202, 13322298, 13322298 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Aug 18, 2024 | Low confidence |
This family
| US 9,363,279 | Lapsed on the fee record Jun 2024 | Jun 2024 |
| US 9,762,605 | Lapsed on the fee record Sep 2025 | Sep 2025 |
| US 10,122,751 | Grace period ended Jan 2031 | Jan 2031 |
| US 10,749,891 | this patent Aug 2024 | Aug 2024 |
| US 11,425,159 | Lapsed on the fee record Aug 2026 | Aug 2026 |
| US 12,058,166 | In force May 2030 | May 2030 |
| Application 18/739,438 | Pending not computed | not computed |
7 of 8 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.
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,122,751, US 9,363,279, US 9,762,605.
Citations
17
later US patents cite this one
That is top 25% of utility patents granted in 2020 in our data, the only group it is compared against.
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.