Collateral for a security interest recorded Aug 5, 2024 (Wells Fargo Bank, National Association).
Term ends Dec 21, 2029 · High confidence
20-year base term ends Dec 21, 2029
Held by 8X8, Inc.
Filed Jan 21, 2020 as application 16/748,112 · Granted Aug 31, 2021
Base term plus 52 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2009
2029
Clock starts
Dec 21, 2009
Dec 21, 2009
Term ends
Dec 21, 2029
Dec 21, 2029
Granted
Aug 31, 2021
Aug 31, 2021
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
52
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,057,428, US 10,547,749, US 9,203,652, US 9,769,321.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows 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 runs 52 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is 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 21, 2009, when application 12/643,733, the earliest non-provisional in its chain, was filed (this one was filed Jan 21, 2020) | Dec 21, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +52 days, USPTO patent term adjustment record | Feb 11, 2030 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,057,428, US 10,547,749, US 9,203,652, US 9,769,321) | capped to Dec 21, 2029 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 21, 2029 | High confidence |
This family
| US 9,203,652 | In force Sep 2033 | Sep 2033 |
| US 9,769,321 | In force Dec 2029 | Dec 2029 |
| US 10,057,428 | In force Dec 2029 | Dec 2029 |
| US 10,547,749 | In force Dec 2029 | Dec 2029 |
| US 11,108,913 | this patent Dec 2029 | Dec 2029 |
| US 11,659,095 | In force 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 |
|---|---|---|---|
| Jan 21, 2020 Reel 51571, frame 410 | Petit-huguenin, Marc; Judge, Garth | 8X8, Inc. | Assignment of Assignor's Interest |
| Aug 5, 2022 Reel 61085, frame 861 | 8X8, Inc.; Fuze, Inc. | Wilmington Savings Fund Society, FSB | Intellectual Property Security Agreement |
| Jan 26, 2024 Reel 66383, frame 936 | 8X8, Inc.; Fuze, Inc. | Wilmington Savings Fund Society, FSB | Corrective Assignment to Correct the Property Numbers Section to Remove Application Numbers 11265423, 11252205, 11240370, 11252276, and 11297182 Previously Recorded on Reel 061085 Frame 0861. Assignor(S) Hereby Confirms the Intellectual Property Security Agreement. |
| Aug 5, 2024 Reel 68327, frame 819 | 8X8, Inc. | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Aug 5, 2024 Reel 68328, frame 569 | Wilmington Savings Fund Society, FSB | 8X8, Inc.; Fuze, Inc. | Release of Security Interest |
| Aug 5, 2024 reel/frame not recorded | Wilmington Savings Fund Society, FSB | 8X8, Inc. | Release of Security Interest |
| Aug 5, 2024 reel/frame not recorded | Wilmington Savings Fund Society, FSB | Fuze, Inc. | Release of 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 21, 2029. Maintenance fees still fall due before then
Note
The 52 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,057,428, US 10,547,749, US 9,203,652, US 9,769,321.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2021 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.