Term ended Oct 10, 2024 · High confidence
20-year base term ended Jan 30, 2024
No current holder resolved from the recorded chain.
Filed May 25, 2011 as application 13/134,006 · Granted Oct 8, 2013
Base term plus 254 days of patent term adjustment (USPTO delay)
Today
Term ended Oct 10, 2024
2004
2026
Clock starts
Jan 30, 2004
Jan 30, 2004
Term ended
Oct 10, 2024
Oct 10, 2024
Granted
Oct 8, 2013
Oct 8, 2013
base term
patent term adjustment
after the term ends
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
254
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.
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 254 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Jan 30, 2004, when application 10/769,484, the earliest non-provisional in its chain, was filed (this one was filed May 25, 2011) | Jan 30, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +254 days, USPTO patent term adjustment record | Oct 10, 2024 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 10, 2024 | High confidence |
This family
| US 8,542,219 | In force May 2027 | May 2027 |
| US 7,729,515 | In force no later than Mar 2029 | no later than Mar 2029 |
| US 7,826,641 | Term ended Oct 2026 | Oct 2026 |
| US 7,961,909 | Term ended Oct 2026 | Oct 2026 |
| US 8,553,935 | this patent Oct 2024 | Oct 2024 |
| US 10,191,559 | Term ended Jan 2024 | Jan 2024 |
| Application 16/653,084 | Abandoned not computed | not computed |
| Application 18/198,223 | Pending not computed | not computed |
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.
What's changing
Note
The 254 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
177
later US patents cite this one
That is top 5% of utility patents granted in 2013 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.