Collateral for a security interest recorded Feb 14, 2023 (Bank of America, N.A.).
Term ends Sep 24, 2028 · High confidence
20-year base term ends Sep 24, 2028
Held by RingCentral, Inc.
Filed Sep 26, 2011 as application 13/245,837 · Granted Feb 9, 2016
Base term, 20 years from filing
Today
2008
2028
Clock starts
Sep 24, 2008
Sep 24, 2008
Term ends
Sep 24, 2028
Sep 24, 2028
Granted
Feb 9, 2016
Feb 9, 2016
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 8,838,082, to Sep 24, 2028. 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.
10
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 Sep 24, 2008, when application 12/237,181, the earliest non-provisional in its chain, was filed (this one was filed Sep 26, 2011) | Sep 24, 2028 | 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 8,838,082) | resolves to Sep 24, 2028, 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 | Sep 24, 2028 | High confidence |
This family
| US 8,670,545 | In force Sep 2028 | Sep 2028 |
| Application PCT/US2008/077683 | PCT application no patent term | no patent term |
| US 8,600,391 | In force Nov 2031 | Nov 2031 |
| Application PCT/US2009/065036 | PCT application no patent term | no patent term |
| US 8,838,082 | In force Jun 2031 | Jun 2031 |
| US 9,258,673 | this patent Sep 2028 | Sep 2028 |
| US 8,213,587 | In force Sep 2028 | Sep 2028 |
| US 8,548,143 | In force no later than Sep 2028 | no later than Sep 2028 |
8 of 10 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 |
|---|---|---|---|
| Dec 13, 2011 Reel 27370, frame 642 | Vendrow, Vlad; Young, Bruce; Shah, Praful; Elpiner, Boris; Shmunis, Vladimir | RingCentral, Inc. | Assignment of Assignor's Interest |
| Oct 18, 2013 Reel 31433, frame 612 | RingCentral, Inc. | RingCentral, Inc. | Merger |
| Feb 14, 2023 Reel 62973, frame 194 | RingCentral, Inc. | Bank of America, N.A., as Collateral Agent | Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Sep 2028
Term ends Sep 24, 2028. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,838,082, ends no earlier than this term, so it caps nothing.
Citations
12
later US patents cite this one
That is above the median 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.