Also listed on Intellectual Ventures Assets 200 LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 19, 2027 · High confidence
20-year base term ended Feb 25, 2025
Held by Interstate Patents, LLC
Filed Feb 25, 2005 as application 11/064,973 · Granted Mar 24, 2009
Base term plus 783 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Feb 25, 2005
Feb 25, 2005
Term ends
Apr 19, 2027
Apr 19, 2027
Granted
Mar 24, 2009
Mar 24, 2009
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
783
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.
4
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 783 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 25, 2005, when this application, 11/064,973, was filed | Feb 25, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +783 days, USPTO patent term adjustment record | Apr 19, 2027 | 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 | Apr 19, 2027 | High confidence |
This family
| US 7,508,922 | this patent Apr 2027 | Apr 2027 |
| US 8,073,111 | Term ended Oct 2025 | Oct 2025 |
| US 8,605,864 | Term ended no later than Sep 2025 | no later than Sep 2025 |
| Application 95/002,210 | Pending not computed | not computed |
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 25, 2005 Reel 16333, frame 561 | Colunga, Elizabeth Anita | Mci, Inc. | Assignment of Assignor's Interest |
| Apr 9, 2008 Reel 20778, frame 63 | Mci, Inc. | Mci, LLC | Merger |
| Apr 9, 2008 Reel 20779, frame 388 | Mci, LLC | Verizon Business Global LLC | Change of Name |
| Jul 19, 2011 Reel 26610, frame 880 | Verizon Business Global LLC | Verizon Patent and Licensing Inc. | Assignment of Assignor's Interest |
| Sep 12, 2011 Reel 26891, frame 212 | Verizon Patent and Licensing Inc. | Plateau Investments B.V. LLC | Assignment of Assignor's Interest |
| Feb 10, 2012 Reel 27684, frame 411 | Plateau Investments B.V. LLC | Intellectual Ventures II LLC | Merger |
| Aug 18, 2025 Reel 72049, frame 758 | Intellectual Ventures II LLC | Intellectual Ventures Assets 200 LLC | Assignment of Assignor's Interest |
| Dec 15, 2025 Reel 73218, frame 509 | Intellectual Ventures Assets 200 LLC | Interstate Patents, LLC | Assignment of Assignor's Interest |
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
Apr 2027
Term ends Apr 19, 2027. No further fees fall due before then
Note
The 783 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
11
later US patents cite this one
That is above the median of utility patents granted in 2009 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.