Lapsed Nov 26, 2025 on the fee record · Low confidence
20-year base term ended Mar 22, 2026
Third maintenance fee unpaid; grace period ended.
Filed Apr 29, 2011 as application 13/097,515 · Granted Nov 26, 2013
Base term, 20 years from filing, plus 153 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 26, 2025
2006
2026
Clock starts
Mar 22, 2006
Mar 22, 2006
No longer in force
Nov 26, 2025
Nov 26, 2025
Granted
Nov 26, 2013
Nov 26, 2013
Term would have run to
Aug 22, 2026
Aug 22, 2026
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
153
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,953,866, to Aug 22, 2026. The term already ends on or before that date, so the cap shortened nothing.
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.
3
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 Aug 22, 2026: its 20-year base term plus 153 days of term adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. Confidence: Low. 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 Mar 22, 2006, when application 11/386,379, the earliest non-provisional in its chain, was filed (this one was filed Apr 29, 2011); a parent in its chain could not be resolved (the next row) | Mar 22, 2026 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +153 days, USPTO patent term adjustment record | Aug 22, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,953,866) | resolves to Aug 22, 2026, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Nov 26, 2025 | High confidence |
| Further caveats on record | The record names parents not resolved: 11386379 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Nov 26, 2025 | Low confidence |
This family
| US 7,953,866 | In force Mar 2030 | Mar 2030 |
| US 8,595,352 | this patent Nov 2025 | Nov 2025 |
| Application 14/064,018 | Abandoned not computed | not computed |
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 |
|---|---|---|---|
| Sep 20, 2011 Reel 26938, frame 922 | Brocade Communications Systems, Inc.; Foundry Networks, LLC; McDATA Corporation | Bank of America, N.A., as Administrative Agent | Supplemental Patent Security Agreement |
| Sep 26, 2011 Reel 26971, frame 42 | Brocade Communications Systems, Inc.; Foundry Networks, LLC; Inrange Technologies Corporation; McDATA Corporation; McDATA Services Corporation | Wells Fargo Bank, National Association, as Collateral Agent | Supplemental Patent Security Agreement |
| Dec 17, 2012 Reel 29486, frame 74 | McDATA Corporation | Brocade Communications Systems, Inc. | Assignment of Assignor's Interest |
| Jan 21, 2015 Reel 34784, frame 609 | Bank of America, N.A., as Administrative Agent | Brocade Communications Systems, Inc.; Foundry Networks, LLC | Release of Security Interest |
| Jan 21, 2015 reel/frame not recorded | Bank of America, N.A., as Administrative Agent | Brocade Communications Systems, Inc. | Release of Security Interest |
| Jan 21, 2015 reel/frame not recorded | Bank of America, N.A., as Administrative Agent | Foundry Networks, LLC | Release of Security Interest |
| Jan 22, 2015 Reel 34804, frame 793 | Wells Fargo Bank, National Association, as Collateral Agent | Brocade Communications Systems, Inc.; Foundry Networks, LLC | Release of Security Interest |
| Jan 22, 2015 reel/frame not recorded | Wells Fargo Bank, National Association, as Collateral Agent | Brocade Communications Systems, Inc. | Release of Security Interest |
| Jan 22, 2015 reel/frame not recorded | Wells Fargo Bank, National Association, as Collateral Agent | Foundry Networks, LLC | Release of Security Interest |
| Dec 13, 2017 Reel 44891, frame 536 | Brocade Communications Systems, Inc. | Brocade Communications Systems LLC | Change of Name |
| Oct 18, 2018 Reel 47270, frame 247 | Brocade Communications Systems LLC | Avago Technologies International Sales Pte. 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 153 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,953,866, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2013 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.