Lapsed Sep 20, 2019 on the fee record · Medium confidence
20-year base term ended Jul 27, 2024
Why Medium: A parent in the chain could not be resolved.
Second maintenance fee unpaid; grace period ended.
No current holder resolved from the recorded chain.
Filed Oct 25, 2006 as application 11/552,788 · Granted Sep 20, 2011
Base term, 20 years from filing, plus 719 days of patent term adjustment (USPTO delay)
Today
Lapsed Sep 20, 2019
2004
2026
Clock starts
Jul 27, 2004
Jul 27, 2004
No longer in force
Sep 20, 2019
Sep 20, 2019
Granted
Sep 20, 2011
Sep 20, 2011
Term would have run to
Jul 16, 2026
Jul 16, 2026
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
719
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
Its term would have run to Jul 16, 2026: its 20-year base term plus 719 days of term adjustment for prosecution delay. Confidence: Medium. 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 Jul 27, 2004, when application 10/900,803, the earliest non-provisional in its chain, was filed (this one was filed Oct 25, 2006); a parent in its chain could not be resolved (the next row) | Jul 27, 2024 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +719 days, USPTO patent term adjustment record | Jul 16, 2026 | 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 | 1 of 3 maintenance fees paid | lapsed Sep 20, 2019 | High confidence |
| Computed term end | The steps above, in order | Sep 20, 2019 | Medium confidence |
This family
| US 7,387,763 | Lapsed on the fee record Jun 2020 | Jun 2020 |
| US 8,021,604 | this patent Sep 2019 | Sep 2019 |
| US D618,760 | Term ended Jun 2024 | Jun 2024 |
| US 8,568,593 | In force Sep 2031 | Sep 2031 |
| US D672,009 | In force Dec 2026 | Dec 2026 |
| US 8,206,645 | Lapsed on the fee record Jun 2020 | Jun 2020 |
| US D718,412 | In force Nov 2028 | Nov 2028 |
| US D762,279 | In force Jul 2030 | Jul 2030 |
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 719 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median 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.