Term ends Jan 1, 2027 · High confidence
20-year base term ended Jun 9, 2026
No current holder resolved from the recorded chain.
Filed Oct 25, 2011 as application 13/281,240 · Granted Oct 27, 2015
Base term plus 810 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2006
2027
Clock starts
Jun 9, 2006
Jun 9, 2006
Term ends
Jan 1, 2027
Jan 1, 2027
Granted
Oct 27, 2015
Oct 27, 2015
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
810
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,641,907.
2 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.
3
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 810 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 2 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 Jun 9, 2006, when application 11/449,876, the earliest non-provisional in its chain, was filed (this one was filed Oct 25, 2011) | Jun 9, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +810 days, USPTO patent term adjustment record | Aug 27, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,641,907) | capped to Jan 1, 2027 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 1, 2027 | High confidence |
This family
| US 7,641,907 | In force Jan 2027 | Jan 2027 |
| US 8,067,565 | Term ended Nov 2026 | Nov 2026 |
| US 9,169,298 | this patent Jan 2027 | Jan 2027 |
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
Jan 2027
Term ends Jan 1, 2027. No further fees fall due before then
Note
The 810 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,641,907.
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2015 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.