Term ends Jan 31, 2030 · High confidence
20-year base term ended Sep 7, 2026
Held by Knapp Investment Company Limited
Filed Sep 7, 2006 as application 11/517,006 · Granted Aug 23, 2011
Base term plus 1242 days of patent term adjustment (USPTO delay)
Today
2006
2030
Clock starts
Sep 7, 2006
Sep 7, 2006
Term ends
Jan 31, 2030
Jan 31, 2030
Granted
Aug 23, 2011
Aug 23, 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
1,242
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.
12
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 1242 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 Sep 7, 2006, when this application, 11/517,006, was filed | Sep 7, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1242 days, USPTO patent term adjustment record | Jan 31, 2030 | 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 | Jan 31, 2030 | High confidence |
This family
| US 7,096,226 | Term ended Jun 2022 | Jun 2022 |
| Application 11/452,851 | Abandoned not computed | not computed |
| US 8,572,123 | Term ended May 2026 | May 2026 |
| US 9,038,108 | In force Nov 2028 | Nov 2028 |
| Application 11/517,015 | Abandoned not computed | not computed |
| US 8,126,313 | Term ended Feb 2025 | Feb 2025 |
| US 8,005,345 | this patent Jan 2030 | Jan 2030 |
| US 7,970,260 | In force Sep 2029 | Sep 2029 |
8 of 12 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 |
|---|---|---|---|
| Dec 28, 2006 Reel 18686, frame 629 | Moore, Richard G.; Rachamadugu, Sreenivas | Verizon Business Network Services Inc. | Assignment of Assignor's Interest |
| Dec 28, 2006 Reel 18686, frame 843 | Haot, Max | Mci Worldcom Ltd. | Assignment of Assignor's Interest |
| Jan 19, 2007 Reel 18781, frame 480 | Haot, Max | Verizon UK Limited | Assignment of Assignor's Interest |
| Oct 1, 2012 Reel 29054, frame 566 | Verizon UK Limited | Verizon Patent and Licensing Inc. | Assignment of Assignor's Interest |
| Nov 12, 2012 Reel 29277, frame 97 | Verizon Patent and Licensing Inc. | Knapp Investment Company Limited | 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
Jan 2030
Term ends Jan 31, 2030. No further fees fall due before then
Note
The 1242 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
38
later US patents cite this one
That is top 25% 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.