Also listed on Fonality, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 7, 2031 · High confidence
20-year base term ends Mar 16, 2029
Held by Sangoma US Inc.
Filed Mar 16, 2009 as application 12/405,204 · Granted Sep 13, 2016
Base term plus 996 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Mar 16, 2009
Mar 16, 2009
Term ends
Dec 7, 2031
Dec 7, 2031
Granted
Sep 13, 2016
Sep 13, 2016
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
996
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
4
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 996 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Mar 16, 2009, when this application, 12/405,204, was filed | Mar 16, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +996 days, USPTO patent term adjustment record | Dec 7, 2031 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 7, 2031 | High confidence |
This family
| US 9,443,244 | this patent Dec 2031 | Dec 2031 |
| US 9,955,004 | In force Mar 2029 | Mar 2029 |
| US 10,834,254 | Lapsed on the fee record Nov 2024 | Nov 2024 |
| US 11,223,720 | In force Mar 2029 | Mar 2029 |
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 |
|---|---|---|---|
| Jul 7, 2009 Reel 22924, frame 187 | Lyman, Christopher M | Fonality, Inc. | Assignment of Assignor's Interest |
| Feb 5, 2013 Reel 29759, frame 673 | Fonality, Inc. | Square 1 Bank | Security Agreement |
| Jun 28, 2013 Reel 30743, frame 115 | Passport Ventures, LLC | Fonality, Inc. | Security Agreement |
| Jan 3, 2014 Reel 31913, frame 66 | Lyman, Christopher M. | Fonality, Inc. | Change of Address |
| Jan 17, 2014 Reel 32088, frame 94 | Fonality, Inc. | Fonality, Inc. | Change of Address |
| Jul 21, 2016 Reel 39428, frame 20 | Fonality, Inc. | Fonality, Inc. | Change of Address |
| Feb 15, 2017 Reel 41264, frame 648 | Passport Ventures, LLC | Fonality, Inc. | Release of Security Interest |
| Feb 21, 2017 Reel 41315, frame 1 | Netfortris Corporation; Netfortris Operating Co., Inc.; Netfortris Acquisition Co., Inc.; Fonality, Inc.; Fonality Merger Sub Inc. | Gladstone Capital Corporation | Security Interest |
| Mar 7, 2017 Reel 41482, frame 414 | Pacific Western Bank, as Successor in Interest to Square 1 Bank | Fonality, Inc. | Release of Security Interest |
| Mar 29, 2022 Reel 59541, frame 538 | Fonality, Inc. | The Toronto- Dominion Bank | Security Agreement |
| Sep 12, 2022 Reel 61064, frame 473 | Fonality, Inc. | Sangoma US Inc. | 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
Dec 2031
Term ends Dec 7, 2031. Maintenance fees still fall due before then
Note
The 996 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 10% of utility patents granted in 2016 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.