Also listed on AT&T Corp., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Oct 24, 2029 · High confidence
20-year base term ends Feb 14, 2027
Filed Feb 14, 2007 as application 11/674,769 · Granted May 10, 2011
Base term plus 983 days of patent term adjustment (USPTO delay)
Today
2007
2029
Clock starts
Feb 14, 2007
Feb 14, 2007
Term ends
Oct 24, 2029
Oct 24, 2029
Granted
May 10, 2011
May 10, 2011
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
983
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.
165
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 983 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 Feb 14, 2007, when this application, 11/674,769, was filed | Feb 14, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +983 days, USPTO patent term adjustment record | Oct 24, 2029 | 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 | Oct 24, 2029 | High confidence |
This family
| US 6,993,326 | Term ended Aug 2022 | Aug 2022 |
| US 7,353,023 | Lapsed on the fee record Apr 2016 | Apr 2016 |
| US 7,191,209 | Lapsed on the fee record Mar 2011 | Mar 2011 |
| US 7,353,248 | Term ended Jan 2023 | Jan 2023 |
| US 7,346,658 | Lapsed on the fee record Mar 2012 | Mar 2012 |
| US 7,013,004 | Lapsed on the fee record Mar 2014 | Mar 2014 |
| US 6,934,377 | Lapsed on the fee record Aug 2017 | Aug 2017 |
| US 7,076,529 | Lapsed on the fee record Jul 2014 | Jul 2014 |
8 of 165 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Feb 14, 2007 Reel 18888, frame 382 | Aaron, Jeffrey; Ruckhart, John | BellSouth Intellectual Property Corporation | Assignment of Assignor's Interest |
| Sep 21, 2015 Reel 36612, frame 119 | AT&T Delaware Intellectual Property, Inc. | AT&T Intellectual Property I, L.P. | Assignment of Assignor's Interest |
| Sep 21, 2015 Reel 36642, frame 635 | BellSouth Intellectual Property Corporation | AT&T Intellectual Property, Inc. | Change of Name |
| Mar 5, 2018 Reel 45496, frame 266 | AT&T Intellectual Property, Inc. | AT&T BLS Intellectual Property, Inc. | Change of Name |
| Mar 5, 2018 Reel 45496, frame 329 | AT&T BLS Intellectual Property, Inc. | AT&T Delaware Intellectual Property, Inc. | Change of Name |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2029
Term ends Oct 24, 2029. No further fees fall due before then
Note
The 983 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
460
later US patents cite this one
That is top 1% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.