Term ends May 3, 2027 · High confidence
20-year base term ends May 3, 2027
Held by Sangoma US Inc.
Filed Sep 25, 2013 as application 14/036,977 · Granted Apr 7, 2015
Base term, 20 years from filing
Today
2007
2027
Clock starts
May 3, 2007
May 3, 2007
Term ends
May 3, 2027
May 3, 2027
Granted
Apr 7, 2015
Apr 7, 2015
base term
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 8,379,832, US 8,571,202, to May 3, 2027. The term already ends on or before that date, so the cap shortened nothing.
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.
3
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. 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 May 3, 2007, when application 11/800,302, the earliest non-provisional in its chain, was filed (this one was filed Sep 25, 2013) | May 3, 2027 | 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 | Disclaimer resolved from the filed document (refs US 8,379,832, US 8,571,202) | resolves to May 3, 2027, no earlier than this term, so no change | 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 | May 3, 2027 | High confidence |
This family
| US 8,379,832 | In force Jun 2030 | Jun 2030 |
| US 8,571,202 | In force May 2027 | May 2027 |
| US 9,001,993 | this patent May 2027 | May 2027 |
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 |
|---|---|---|---|
| Oct 24, 2013 Reel 31474, frame 335 | Lyman, Christopher M. | Fonality, Inc. | Assignment of Assignor's Interest |
| Dec 2, 2013 Reel 31697, frame 83 | Lyman, Christopher M. | Fonality, Inc. | Assignment of Assignor's Interest |
| Mar 11, 2015 Reel 35188, frame 643 | Fonality, Inc. | Fonality, Inc. | Change of Address |
| Mar 17, 2015 Reel 35180, frame 483 | Fonality, Inc. | Square 1 Bank | 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
May 2027
Term ends May 3, 2027.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,379,832, US 8,571,202, ends no earlier than this term, so it caps nothing.
Citations
33
later US patents cite this one
That is top 25% 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.