Term ends Oct 12, 2028 · Medium confidence
20-year base term ends May 13, 2028
Why Medium: A parent in the chain could not be resolved.
Held by Cambium Networks, Ltd.
Filed Dec 31, 2012 as application 13/732,253 · Granted Apr 7, 2015
Base term plus 152 days of patent term adjustment (USPTO delay)
Today
2008
2028
Clock starts
May 13, 2008
May 13, 2008
Term ends
Oct 12, 2028
Oct 12, 2028
Granted
Apr 7, 2015
Apr 7, 2015
base term
patent term adjustment
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
152
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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 runs 152 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 May 13, 2008, when the earliest non-provisional application in its chain was filed (this one was filed Dec 31, 2012); a parent in its chain could not be resolved (the next row) | May 13, 2028 | 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 | +152 days, USPTO patent term adjustment record | Oct 12, 2028 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 12, 2028 | Medium confidence |
This family
| US 8,934,416 | In force Jul 2028 | Jul 2028 |
| US 9,001,764 | this patent Oct 2028 | Oct 2028 |
| US 8,798,069 | Term ended Mar 2026 | Mar 2026 |
| Application 14/446,091 | Abandoned not computed | not computed |
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 |
| Dec 23, 2013 Reel 31867, frame 745 | Xirrus, Inc. | Triplepoint Capital LLC | Security Agreement |
| Feb 14, 2014 Reel 32222, frame 915 | Gates, Dirk Ion; Mathews, James Kirk | Xirrus, Inc. | Assignment of Assignor's Interest |
| 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 20, 2016 Reel 38662, frame 731 | Xirrus, Inc. | Silicon Valley Bank | Security Interest |
| May 2, 2017 Reel 42388, frame 79 | Silicon Valley Bank | Xirrus, Inc. | Release of Intellectual Property Security Agreement Recorded at Reel 038662/FRAME 0731 |
| 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.
What's changing
Oct 2028
Term ends Oct 12, 2028. No further fees fall due before then
Note
The 152 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2015 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.