Lapsed May 8, 2024 on the fee record · Low confidence
20-year base term ended Jun 29, 2025
Third maintenance fee unpaid; grace period ended.
Filed Sep 25, 2009 as application 12/567,612 · Granted May 8, 2012
Base term, 20 years from filing
Today
Lapsed May 8, 2024
2005
2026
Clock starts
Jun 29, 2005
Jun 29, 2005
No longer in force
May 8, 2024
May 8, 2024
Granted
May 8, 2012
May 8, 2012
Term would have run to
Jun 29, 2025
Jun 29, 2025
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,609,654, to Jun 29, 2025. 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.
2
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 29, 2025: its 20-year base term, with no 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 Jun 29, 2005, when application 11/171,578, the earliest non-provisional in its chain, was filed (this one was filed Sep 25, 2009); a parent in its chain could not be resolved (the next row) | Jun 29, 2025 | 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 | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,609,654) | resolves to Jun 29, 2025, 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 May 8, 2024 | High confidence |
| Further caveats on record | The record names parents not resolved: 11171578 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | May 8, 2024 | Low confidence |
This family
| US 7,609,654 | In force Jun 2028 | Jun 2028 |
| US 8,175,001 | this patent May 2024 | May 2024 |
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 |
|---|---|---|---|
| Jan 20, 2010 Reel 23814, frame 587 | Brocade Communications Systems, Inc.; Foundry Networks, LLC; Inrange Technologies Corporation; McDATA Corporation; McDATA Services Corporation | Wells Fargo Bank, National Association, as Collateral Agent | Security Agreement |
| Feb 11, 2010 Reel 23925, frame 599 | Lubeck, Mark; Kondapalli, Naveen; Kasaraneni, Jagadeesh | McDATA Corporation | Assignment of Assignor's Interest |
| Dec 17, 2012 Reel 29486, frame 74 | McDATA Corporation | Brocade Communications Systems, Inc. | Assignment of Assignor's 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.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,609,654, ends no earlier than this term, so it caps nothing.
Citations
59
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.