Collateral for a security interest recorded Aug 5, 2024 (Wells Fargo Bank, National Association).
Term ends Dec 23, 2029 · High confidence
20-year base term ends Dec 23, 2029
Held by 8X8, Inc.
Filed Nov 11, 2022 as application 17/985,406 · Granted Dec 3, 2024
Base term, 20 years from filing
Today
2009
2029
Clock starts
Dec 23, 2009
Dec 23, 2009
Term ends
Dec 23, 2029
Dec 23, 2029
Granted
Dec 3, 2024
Dec 3, 2024
base term
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.
None
Terminal disclaimer
No disclaimer on this record.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
6
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. 0 of 1 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 Dec 23, 2009, when application 12/646,604, the earliest non-provisional in its chain, was filed (this one was filed Nov 11, 2022) | Dec 23, 2029 | 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 | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 23, 2029 | High confidence |
This family
| US 8,914,734 | In force Jan 2032 | Jan 2032 |
| US 9,881,282 | In force Sep 2031 | Sep 2031 |
| US 10,528,922 | In force May 2030 | May 2030 |
| US 10,937,005 | In force Dec 2029 | Dec 2029 |
| US 11,501,264 | In force Dec 2029 | Dec 2029 |
| US 12,159,264 | this patent Dec 2029 | Dec 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 |
|---|---|---|---|
| Nov 11, 2022 Reel 61737, frame 502 | Narayanaswamy, Ramprakash | 8X8, Inc. | Assignment of Assignor's Interest |
| Aug 5, 2024 Reel 68327, frame 819 | 8X8, Inc. | Wells Fargo Bank, National Association, as Administrative 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
Dec 2029
Term ends Dec 23, 2029. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.