Term ended Jan 29, 2023 · High confidence
20-year base term ended Jul 30, 2021
Held by Intellectual Ventures II LLC
Filed Jul 30, 2001 as application 09/916,330 · Granted Apr 1, 2008
Base term plus 548 days of patent term adjustment (USPTO delay)
Today
Term ended Jan 29, 2023
2001
2026
Clock starts
Jul 30, 2001
Jul 30, 2001
Term ended
Jan 29, 2023
Jan 29, 2023
Granted
Apr 1, 2008
Apr 1, 2008
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
548
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 548 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 Jul 30, 2001, when this application, 09/916,330, was filed | Jul 30, 2021 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +548 days, USPTO patent term adjustment record | Jan 29, 2023 | 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 | Jan 29, 2023 | 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 | this patent 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 |
|---|---|---|---|
| Nov 15, 2001 Reel 12308, frame 86 | Kirkpatrick, Mark A.; Strohmeyer, John A.; Morrow, Darin J.; Bass, Michael S. | BellSouth Intellectual Property Corporation | Assignment of Assignor's Interest |
| Aug 25, 2011 Reel 26810, frame 547 | AT&T Delaware Intellectual Property, Inc. | AT&T Intellectual Property I, L.P. | Nunc Pro Tunc Assignment |
| Nov 16, 2011 Reel 27242, frame 38 | BellSouth Intellectual Property Corporation | AT&T Intellectual Property, Inc. | Change of Name |
| Nov 16, 2011 Reel 27242, frame 76 | AT&T Intellectual Property, Inc. | AT&T BLS Intellectual Property, Inc. | Change of Name |
| Nov 16, 2011 Reel 27242, frame 89 | AT&T BLS Intellectual Property, Inc. | AT&T Delaware Intellectual Property, Inc. | Change of Name |
| Nov 16, 2011 Reel 27241, frame 681 | AT&T Intellectual Property I, LP | Worcester Technologies LLC | Assignment of Assignor's Interest |
| Jun 18, 2013 Reel 30638, frame 27 | Worcester Technologies LLC | Intellectual Ventures II LLC | Merger |
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
Note
The 548 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
16
later US patents cite this one
That is above the median of utility patents granted in 2008 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.