Lapsed Jul 26, 2023 on the fee record · High confidence
20-year base term ended Apr 25, 2026
Third maintenance fee unpaid; grace period ended.
Held by Cisco Technology, Inc.
Filed Dec 19, 2007 as application 12/004,321 · Granted Jul 26, 2011
Base term, 20 years from filing, plus 823 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Jul 26, 2023
2006
2027
Clock starts
Apr 25, 2006
Apr 25, 2006
No longer in force
Jul 26, 2023
Jul 26, 2023
Granted
Jul 26, 2011
Jul 26, 2011
Term would have run to
Jun 12, 2027
Jun 12, 2027
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
823
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 12,004,125, US 7,515,556.
2 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.
8
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jun 12, 2027: its 20-year base term plus 823 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Apr 25, 2006, when application 11/411,404, the earliest non-provisional in its chain, was filed (this one was filed Dec 19, 2007) | Apr 25, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +823 days, USPTO patent term adjustment record | Jul 26, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 12,004,125, US 7,515,556) | capped to Jun 12, 2027 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Jul 26, 2023 | High confidence |
| Computed term end | The steps above, in order | Jul 26, 2023 | High confidence |
This family
| US 7,515,556 | Lapsed on the fee record Apr 2021 | Apr 2021 |
| Application 11/516,841 | Abandoned not computed | not computed |
| Application PCT/US2007/010005 | PCT application no patent term | no patent term |
| US 8,681,671 | Lapsed on the fee record Mar 2022 | Mar 2022 |
| US 7,986,652 | this patent Jul 2023 | Jul 2023 |
| US 8,175,073 | In force Jun 2027 | Jun 2027 |
| US 8,009,602 | Lapsed on the fee record Aug 2023 | Aug 2023 |
| US 9,078,212 | Term ended Apr 2026 | Apr 2026 |
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 |
|---|---|---|---|
| Mar 24, 2008 Reel 20726, frame 580 | Hui, Jonathan W.; Culler, David E. | Arch Rock | Assignment of Assignor's Interest |
| Apr 15, 2011 Reel 26138, frame 950 | Arch Rock Corporation | Arch Rock LLC | Change of Name |
| Apr 15, 2011 Reel 26137, frame 114 | Arch Rock LLC | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 823 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 12,004,125, US 7,515,556.
Citations
9
later US patents cite this one
That is above the median 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.