Lapsed May 23, 2025 on the fee record · High confidence
20-year base term ended Sep 29, 2025
Second maintenance fee unpaid; grace period ended.
Filed Aug 12, 2015 as application 14/824,407 · Granted May 23, 2017
Base term, 20 years from filing
Today
Lapsed May 23, 2025
2005
2026
Clock starts
Sep 29, 2005
Sep 29, 2005
No longer in force
May 23, 2025
May 23, 2025
Granted
May 23, 2017
May 23, 2017
Term would have run to
Sep 29, 2025
Sep 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.
None
Terminal disclaimer
No disclaimer on this record.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 Sep 29, 2025: its 20-year base term, with no adjustment for prosecution delay. 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 29, 2005, when application 11/239,954, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2015) | Sep 29, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 1 of 2 maintenance fees paid | lapsed May 23, 2025 | High confidence |
| Computed term end | The steps above, in order | May 23, 2025 | High confidence |
This family
| US 9,143,841 | In force Jun 2031 | Jun 2031 |
| US 9,661,085 | this patent May 2025 | May 2025 |
| US 10,361,903 | Lapsed on the fee record Jul 2023 | Jul 2023 |
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 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.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2017 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.