Term ends May 8, 2027 · High confidence
20-year base term ended Apr 28, 2026
Filed Nov 1, 2021 as application 17/516,082 · Granted Aug 20, 2024
Base term plus 375 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Apr 28, 2006
Apr 28, 2006
Term ends
May 8, 2027
May 8, 2027
Granted
Aug 20, 2024
Aug 20, 2024
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
375
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
11
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 375 days past its 20-year base term on prosecution delay. No maintenance fee can end this term early. 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 Apr 28, 2006, when application 11/413,561, the earliest non-provisional in its chain, was filed (this one was filed Nov 1, 2021) | Apr 28, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +375 days, USPTO patent term adjustment record | May 8, 2027 | 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 | No maintenance fee can end the term early | In force | High confidence |
| Computed term end | The steps above, in order | May 8, 2027 | High confidence |
This family
| US 7,560,112 | Surrendered on reissue Sep 2012 | Sep 2012 |
| US 7,833,755 | Term ended Apr 2026 | Apr 2026 |
| US 8,067,003 | Term ended Apr 2026 | Apr 2026 |
| US RE43,672 | In force Apr 2027 | Apr 2027 |
| US 8,226,611 | Term ended Apr 2026 | Apr 2026 |
| US 8,623,362 | Term ended no later than Apr 2026 | no later than Apr 2026 |
| US 9,340,613 | Term ended Aug 2026 | Aug 2026 |
| US 9,631,016 | Term ended Apr 2026 | Apr 2026 |
8 of 11 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
May 2027
Term ends May 8, 2027. No further fees fall due before then
Note
The 375 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
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.