Also listed on Ericsson AB, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 27, 2026 · High confidence
20-year base term ended Nov 18, 2025
Held by Ericsson Evdo Inc.
Filed Nov 18, 2005 as application 11/282,996 · Granted Jul 7, 2009
Base term plus 374 days of patent term adjustment (USPTO delay)
Today
2005
2026
Clock starts
Nov 18, 2005
Nov 18, 2005
Term ends
Nov 27, 2026
Nov 27, 2026
Granted
Jul 7, 2009
Jul 7, 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
374
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.
2
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 374 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 Nov 18, 2005, when this application, 11/282,996, was filed | Nov 18, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +374 days, USPTO patent term adjustment record | Nov 27, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 27, 2026 | High confidence |
This family
| US 7,558,588 | this patent Nov 2026 | Nov 2026 |
| US 7,920,541 | Term ended Nov 2025 | Nov 2025 |
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 15, 2006 Reel 17295, frame 159 | To, Philip; Eyceoz, Tugay | Airvana, Inc. | Assignment of Assignor's Interest |
| Apr 9, 2010 Reel 24213, frame 355 | Airvana, Inc. | Wilmington Trust FSB | Patent Security Agreement |
| Aug 9, 2010 Reel 24804, frame 404 | Airvana, Inc. | Airvana Network Solutions, Inc. | Change of Name |
| Aug 27, 2010 Reel 24892, frame 924 | Wilmington Trust FSB, as Administrative Agent and Collateral Agent | Airvana, Inc. | Release of Security Interest |
| Sep 2, 2010 Reel 24933, frame 25 | Airvana Network Solutions Inc. | Societe Generale | Security Agreement |
| Jan 24, 2013 Reel 29686, frame 47 | Societe Generale | Airvana Network Solutions Inc. | Release of Security Interest in Patent Collateral at Reel/Frame No. 024933/0025 |
| Oct 29, 2013 Reel 31508, frame 566 | Airvana Network Solutions Inc. | Ericsson Evdo 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
Nov 2026
Term ends Nov 27, 2026. No further fees fall due before then
Note
The 374 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
168
later US patents cite this one
That is top 5% 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.