Term ends Aug 21, 2027 · High confidence
20-year base term ended Aug 24, 2025
No current holder resolved from the recorded chain.
Filed Jul 30, 2007 as application 11/830,746 · Granted Feb 15, 2011
Base term plus 727 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Aug 24, 2005
Aug 24, 2005
Term ends
Aug 21, 2027
Aug 21, 2027
Granted
Feb 15, 2011
Feb 15, 2011
base term
patent term adjustment
fee events
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
727
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
12
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 727 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 24, 2005, when application 11/212,313, the earliest non-provisional in its chain, was filed (this one was filed Jul 30, 2007) | Aug 24, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +727 days, USPTO patent term adjustment record | Aug 21, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 21, 2027 | High confidence |
This family
| US 7,536,565 | In force Dec 2026 | Dec 2026 |
| US 7,593,782 | In force Oct 2027 | Oct 2027 |
| Application PCT/US2005/046797 | PCT application no patent term | no patent term |
| US 7,889,497 | this patent Aug 2027 | Aug 2027 |
| Application 11/830,476 | Abandoned not computed | not computed |
| US 7,865,745 | Lapsed on the fee record Jan 2023 | Jan 2023 |
| US 7,856,564 | Term ended Aug 2025 | Aug 2025 |
| US 8,259,444 | Lapsed on the fee record Sep 2024 | Sep 2024 |
8 of 12 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.
What's changing
Aug 2027
Term ends Aug 21, 2027. No further fees fall due before then
Note
The 727 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
28
later US patents cite this one
That is top 25% of utility patents granted in 2011 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.