Lapsed Aug 26, 2026 on the fee record · High confidence
20-year base term ends Feb 2, 2031
Third maintenance fee unpaid; grace period ended.
No current holder resolved from the recorded chain.
Filed Jul 3, 2012 as application 13/541,282 · Granted Aug 26, 2014
Base term, 20 years from filing
Today
Lapsed Aug 26, 2026
2011
2031
Clock starts
Feb 2, 2011
Feb 2, 2011
No longer in force
Aug 26, 2026
Aug 26, 2026
Granted
Aug 26, 2014
Aug 26, 2014
Term would have run to
Feb 2, 2031
Feb 2, 2031
base term
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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.
2 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.
10
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Feb 2, 2031: its 20-year base term, with no adjustment for prosecution delay. 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 Feb 2, 2011, when application 13/019,928, the earliest non-provisional in its chain, was filed (this one was filed Jul 3, 2012) | Feb 2, 2031 | 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 | 2 of 3 maintenance fees paid | lapsed Aug 26, 2026 | High confidence |
| Computed term end | The steps above, in order | Aug 26, 2026 | High confidence |
This family
| US 8,961,305 | In force Feb 2031 | Feb 2031 |
| US 8,317,615 | In force Feb 2031 | Feb 2031 |
| US 8,913,009 | In force no later than Jul 2032 | no later than Jul 2032 |
| US 8,814,686 | this patent Aug 2026 | Aug 2026 |
| US 9,776,083 | In force May 2031 | May 2031 |
| US 10,449,444 | In force Mar 2031 | Mar 2031 |
| US 11,173,392 | In force Jul 2031 | Jul 2031 |
| US 11,745,097 | In force Jun 2031 | Jun 2031 |
8 of 10 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.
Citations
30
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.