Also listed on Dragonwave X LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jun 19, 2028 · High confidence
20-year base term ended Dec 15, 2025
Held by Coms IP Holdings, LLC
Filed Aug 18, 2008 as application 11/793,680 · Granted Dec 10, 2013
Base term plus 917 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Dec 15, 2005
Dec 15, 2005
Term ends
Jun 19, 2028
Jun 19, 2028
Granted
Dec 10, 2013
Dec 10, 2013
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
917
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.
2
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 917 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Dec 15, 2005, when application PCT/CA2005/001895, the earliest non-provisional in its chain, was filed (this one was filed Aug 18, 2008) | Dec 15, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +917 days, USPTO patent term adjustment record | Jun 19, 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 (reinstated) | High confidence |
| Computed term end | The steps above, in order | Jun 19, 2028 | High confidence |
This family
| US 8,606,186 | this patent Jun 2028 | Jun 2028 |
1 of 2 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 |
|---|---|---|---|
| Sep 19, 2008 Reel 21557, frame 919 | Aithal, Prakasha; Wintour, Justin L. | Dragonwave, Inc. | Assignment of Assignor's Interest |
| Sep 14, 2009 Reel 23220, frame 567 | Dragonwave Inc. | Comerica Bank | Security Agreement |
| Jan 29, 2010 Reel 23861, frame 955 | Dragonwave Inc. | 4472314 Canada Inc. | Assignment of Assignor's Interest |
| Feb 29, 2012 Reel 27784, frame 448 | 4472314 Canada Inc. | Dragonwave Inc. | Assignment of Assignor's Interest |
| Jun 8, 2012 Reel 28342, frame 462 | Dragonwave Inc. | Comerica Bank, a Texas Banking Association and Authorized Foreign Bank Under the Bank Act (Canada), as Agent | Security Agreement |
| Mar 8, 2019 Reel 48541, frame 566 | Dragonwave Inc. | Transform-X, Inc. | Assignment of Assignor's Interest |
| Sep 24, 2019 Reel 50476, frame 639 | Dragonwave-X Canada, Inc. | Dragonwave-X, LLC | Assignment of Assignor's Interest |
| Sep 24, 2019 Reel 50481, frame 27 | Dragonwave Inc. | Dragonwave-X Canada, Inc. | Corrective Assignment to Correct the Correct Assignee Previously Recorded at Reel: 048541 Frame: 0566. Assignor(S) Hereby Confirms the Assignment. |
| Aug 3, 2022 Reel 60713, frame 728 | Dragonwave-X, LLC | Coms IP Holdings, LLC | 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.
What's changing
Jun 2028
Term ends Jun 19, 2028. No further fees fall due before then
Note
The 917 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
37
later US patents cite this one
That is top 25% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.