Term ends Oct 28, 2027 · High confidence
20-year base term ends Jan 19, 2027
Held by Enghouse Interactive Inc.
Filed Feb 28, 2012 as application 13/407,217 · Granted Jul 22, 2014
Base term plus 282 days of patent term adjustment (USPTO delay)
Today
2007
2027
Clock starts
Jan 19, 2007
Jan 19, 2007
Term ends
Oct 28, 2027
Oct 28, 2027
Granted
Jul 22, 2014
Jul 22, 2014
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
282
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,125,508, to Oct 28, 2027. 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.
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 runs 282 days past its 20-year base term on 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 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 Jan 19, 2007, when application 11/624,984, the earliest non-provisional in its chain, was filed (this one was filed Feb 28, 2012) | Jan 19, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +282 days, USPTO patent term adjustment record | Oct 28, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,125,508) | resolves to Oct 28, 2027, 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 | In force | High confidence |
| Computed term end | The steps above, in order | Oct 28, 2027 | High confidence |
This family
| US 8,125,508 | In force Dec 2030 | Dec 2030 |
| US 8,786,668 | this patent Oct 2027 | Oct 2027 |
| US 9,414,013 | In force Feb 2027 | Feb 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 |
|---|---|---|---|
| Feb 28, 2012 Reel 27776, frame 758 | Kenoyer, Michael L. | Lifesize Communications, Inc. | Assignment of Assignor's Interest |
| Feb 26, 2016 Reel 37900, frame 54 | Lifesize Communications, Inc. | Lifesize, Inc. | Assignment of Assignor's Interest |
| Mar 2, 2020 Reel 52066, frame 126 | Serenova, LLC; Lifesize, Inc.; Lo Platform Midco, Inc. | Silicon Valley Bank, as Administrative Agent and Collateral Agent | Security Interest |
| Mar 16, 2020 Reel 52179, frame 63 | Lifesize, Inc. | Westriver Innovation Lending Fund VIII, L.P. | Security Interest |
| Mar 14, 2025 Reel 70932, frame 415 | SL Midco 2, LLC; SL Midco 1, LLC; Lo Platform Midco, Inc.; Serenova, LLC; Lifesize, Inc.; Telestrat LLC; Light Blue Optics Inc.; Serenova WFM, Inc. | Enghouse Interactive 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
Oct 2027
Term ends Oct 28, 2027. No further fees fall due before then
Note
The 282 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,125,508, ends no earlier than this term, so it caps nothing.
Citations
20
later US patents cite this one
That is top 25% of utility patents granted in 2014 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.