Also listed on Datastax, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 16, 2031 · High confidence
20-year base term ends Aug 20, 2032
Filed Dec 19, 2014 as application 14/576,845 · Granted Feb 16, 2016
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
2012
2032
Clock starts
Aug 20, 2012
Aug 20, 2012
Term ends
Nov 16, 2031
Nov 16, 2031
Granted
Feb 16, 2016
Feb 16, 2016
base term
after the term ends
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.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,924,412, US 8,924,472.
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.
2
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 resolved from the filed document caps it earlier. 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 Aug 20, 2012, when application 13/590,080, the earliest non-provisional in its chain, was filed (this one was filed Dec 19, 2014) | Aug 20, 2032 | 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 8,924,412, US 8,924,472) | capped to Nov 16, 2031 | 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 | Nov 16, 2031 | High confidence |
This family
| US 8,924,472 | In force Nov 2032 | Nov 2032 |
| US 9,264,519 | this patent Nov 2031 | Nov 2031 |
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 8, 2015 Reel 34664, frame 190 | Luciani, T Jake | Datastax, Inc. | Assignment of Assignor's Interest |
| Dec 9, 2016 Reel 40702, frame 349 | Datastax, Inc. | Silicon Valley Bank, As Administrative Agent | Security Interest |
| Jun 26, 2019 Reel 49601, frame 124 | Datastax, Inc. | Silicon Valley Bank | Intellectual Property Security Agreement |
| Jun 26, 2025 Reel 71535, frame 849 | First-Citizens Bank & Trust Company | Datastax, Inc. | Release of Security Interest |
| Jun 27, 2025 Reel 71542, frame 865 | First-Citizens Bank & Trust Company | Datastax, Inc. | Release of Security Interest |
| Aug 20, 2025 Reel 72490, frame 899 | First-Citizens Bank & Trust Company | Datastax, Inc. | Corrective Assignment to Correct the Property Number 10148754 from Application Number to Patent Number Previously Recorded on Reel 71535 Frame 849. Assignor(S) Hereby Confirms the Release of Security Interest. |
| Aug 20, 2025 Reel 72491, frame 1 | First-Citizens Bank & Trust Company | Datastax, Inc. | Corrective Assignment to Correct the Property Number 10148754 from Application Number to Patent Number Previously Recorded on Reel 71542 Frame 865. Assignor(S) Hereby Confirms the Release of Security Interest. |
| Sep 9, 2025 Reel 72198, frame 47 | Datastax, Inc. | International Business Machines Corporation | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2031
Term ends Nov 16, 2031. Maintenance fees still fall due before then
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,924,412, US 8,924,472.
Citations
0
later US patents cite this one
That is below 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.