Term ends Nov 19, 2028 · High confidence
20-year base term ends Nov 19, 2028
Filed Feb 8, 2022 as application 17/667,154 · Granted Aug 15, 2023
Base term, 20 years from filing
Today
2008
2028
Clock starts
Nov 19, 2008
Nov 19, 2008
Term ends
Nov 19, 2028
Nov 19, 2028
Granted
Aug 15, 2023
Aug 15, 2023
base term
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.
None
Terminal disclaimer
No disclaimer on this record.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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 is its 20-year base term, with no adjustment for prosecution delay. 0 of 1 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 Nov 19, 2008, when application 12/273,598, the earliest non-provisional in its chain, was filed (this one was filed Feb 8, 2022) | Nov 19, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 19, 2028 | High confidence |
This family
| US 9,204,344 | In force May 2031 | May 2031 |
| US 9,924,417 | In force Mar 2029 | Mar 2029 |
| US 10,499,290 | In force Nov 2028 | Nov 2028 |
| US 11,246,066 | In force Nov 2028 | Nov 2028 |
| US 11,729,677 | this patent Nov 2028 | Nov 2028 |
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
Nov 2028
Term ends Nov 19, 2028. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2023 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.