Term ends Nov 19, 2026 · High confidence
20-year base term ended Feb 22, 2025
Held by Cisco Technology, Inc.
Filed Feb 22, 2005 as application 11/064,275 · Granted Apr 26, 2011
USPTO first gave this application the number US 7,852,747 and withdrew it before it issued. That number now leads here.
Base term plus 683 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2005
2026
Clock starts
Feb 22, 2005
Feb 22, 2005
Term ends
Nov 19, 2026
Nov 19, 2026
Granted
Apr 26, 2011
Apr 26, 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
683
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,188,221, US 11,393,166, US 11,518,382, US 7,848,224.
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 683 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 22, 2005, when this application, 11/064,275, was filed | Feb 22, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +683 days, USPTO patent term adjustment record | Jan 6, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,188,221, US 11,393,166, US 11,518,382, US 7,848,224) | capped to Nov 19, 2026 | 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 19, 2026 | High confidence |
This family
| US 7,933,197 | this patent Nov 2026 | Nov 2026 |
| Application PCT/US2006/006238 | PCT application no patent term | no patent term |
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 22, 2005 Reel 16328, frame 834 | Bryant, Stewart Frederick; Shand, Ian Michael Charles | Cisco Technology, Inc. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2026
Term ends Nov 19, 2026. No further fees fall due before then
Note
The 683 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,188,221, US 11,393,166, US 11,518,382, US 7,848,224.
Citations
47
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.