Term ended Mar 9, 2026 · Medium confidence
20-year base term ended Mar 9, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Cambium Networks, Ltd.
Filed Jun 4, 2012 as application 13/487,918 · Granted Aug 27, 2013
Base term, 20 years from filing
Today
Term ended Mar 9, 2026
2006
2026
Clock starts
Mar 9, 2006
Mar 9, 2006
Term ended
Mar 9, 2026
Mar 9, 2026
Granted
Aug 27, 2013
Aug 27, 2013
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 8,184,062, to Mar 9, 2026. The term already ends on or before that date, so the cap shortened nothing.
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.
5
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 is 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. All three maintenance fees were paid, so no fee lapse ended it. Confidence: Medium. 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 9, 2006, when application PCT/US2006/008747, the earliest non-provisional in its chain, was filed (this one was filed Jun 4, 2012); a parent in its chain could not be resolved (the next row) | Mar 9, 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 | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,184,062) | resolves to Mar 9, 2026, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Mar 9, 2026 | Medium confidence |
This family
| US 8,184,062 | In force (reinstated) Jun 2028 | Jun 2028 |
| US 8,963,792 | Term ended Mar 2026 | Mar 2026 |
| US 8,519,902 | this patent Mar 2026 | Mar 2026 |
| US 9,666,933 | Term ended Mar 2026 | Mar 2026 |
4 of 5 applications in this family shown, earliest filings first. 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 5, 2013 Reel 29923, frame 752 | Xirrus, Inc. | Carr & Ferrell, LLP | Security Agreement |
| Mar 13, 2013 Reel 29992, frame 105 | Xirrus, Inc. | Silicon Valley Bank | Security Agreement |
| Dec 13, 2013 Reel 31782, frame 131 | Hartenstein, Abraham | Xirrus, Inc. | Assignment of Assignor's Interest |
| Dec 23, 2013 Reel 31867, frame 745 | Xirrus, Inc. | Triplepoint Capital LLC | Security Agreement |
| Mar 3, 2014 Reel 32380, frame 252 | Xirrus, Inc. | Carr & Ferrell LLP | Security Agreement |
| Mar 7, 2014 Reel 32410, frame 338 | Triplepoint Capital LLC | Triplepoint Venture Growth BDC Corp. | Assignment of Security Agreement (REEL 031867, Frame 0745) |
| Apr 30, 2014 Reel 32794, frame 290 | Carr & Ferrell LLP | Xirrus, Inc. | Release of Security Interest |
| May 2, 2017 Reel 42388, frame 164 | Silicon Valley Bank | Xirrus, Inc. | Release of Intellectual Property Security Agreement Recorded at Reel 029992/FRAME 0105 |
| May 2, 2017 Reel 42388, frame 753 | Triplepoint Venture Growth BDC Corp., as Assignee of Triplepoint Capital LLC | Xirrus, Inc. | Release of Security Interest Recorded at Reel 031867/FRAME 0745 |
| Sep 18, 2018 Reel 47100, frame 874 | Xirrus, Inc. | Xirrus LLC | Conversion to Limited Liability Company |
| Oct 2, 2018 Reel 47706, frame 936 | Xirrus LLC | Riverbed Technology, Inc. | Assignment of Assignor's Interest |
| Jul 10, 2019 Reel 49720, frame 808 | Riverbed Technology, Inc. | Morgan Stanley Senior Funding, Inc., as Collateral Agent | Patent Security Agreement |
| Aug 8, 2019 Reel 50016, frame 600 | Morgan Stanley Senior Funding, Inc. | Riverbed Technology, Inc. | Release of Security Interest in Certain Patents |
| Feb 11, 2020 Reel 51894, frame 194 | Riverbed Technology, Inc. | Cambium Networks, Ltd. | 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 8,184,062, ends no earlier than this term, so it caps nothing.
Citations
1
later US patent cites 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.