Term ends Jul 21, 2027 · High confidence
20-year base term ends Nov 28, 2026
No current holder resolved from the recorded chain.
Filed Feb 26, 2010 as application 12/713,391 · Granted Sep 11, 2012
Base term plus 235 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Nov 28, 2006
Nov 28, 2006
Term ends
Jul 21, 2027
Jul 21, 2027
Granted
Sep 11, 2012
Sep 11, 2012
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
235
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.
4
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 235 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 Nov 28, 2006, when application 11/563,880, the earliest non-provisional in its chain, was filed (this one was filed Feb 26, 2010) | Nov 28, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +235 days, USPTO patent term adjustment record | Jul 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 | Jul 21, 2027 | High confidence |
This family
| US 7,671,826 | In force Oct 2028 | Oct 2028 |
| US 8,264,430 | this patent Jul 2027 | Jul 2027 |
| US 8,717,261 | Lapsed on the fee record May 2026 | May 2026 |
| US 9,276,037 | In force Nov 2026 | Nov 2026 |
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
Jul 2027
Term ends Jul 21, 2027. No further fees fall due before then
Note
The 235 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
43
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.