Term ended Oct 27, 2026 · High confidence
20-year base term ended Nov 16, 2025
Filed Nov 16, 2005 as application 11/274,297 · Granted Feb 10, 2009
Base term plus 345 days of patent term adjustment (USPTO delay)
Today
Term ended Oct 27, 2026
2005
2026
Clock starts
Nov 16, 2005
Nov 16, 2005
Term ended
Oct 27, 2026
Oct 27, 2026
Granted
Feb 10, 2009
Feb 10, 2009
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
345
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.
29
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 345 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 Nov 16, 2005, when this application, 11/274,297, was filed | Nov 16, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +345 days, USPTO patent term adjustment record | Oct 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 27, 2026 | High confidence |
This family
| US 6,909,879 | Lapsed on the fee record Jun 2017 | Jun 2017 |
| US 7,013,145 | Lapsed on the fee record Mar 2018 | Mar 2018 |
| US 7,489,690 | this patent Oct 2026 | Oct 2026 |
| US 8,355,413 | Lapsed on the fee record Jan 2021 | Jan 2021 |
| US 7,907,578 | Lapsed on the fee record Mar 2023 | Mar 2023 |
| Application PCT/US2006/023872 | PCT application no patent term | no patent term |
| US 7,984,130 | Lapsed on the fee record Jul 2023 | Jul 2023 |
| US 8,244,209 | Lapsed on the fee record Aug 2024 | Aug 2024 |
8 of 29 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 16, 2005 Reel 17224, frame 605 | Kakadia, Deepak Kumar | Cellco Partnership (D/B/A Verizon Wireless) | Assignment of Assignor's Interest |
| Oct 26, 2008 Reel 21737, frame 263 | Kakadia, Deepak Kumar | Cellco Partnership D/B/A Verizon Wireless | Nunc Pro Tunc Assignment |
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 345 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
41
later US patents cite this one
That is top 25% 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.