Also listed on Schooner Information Technology, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 21, 2031 · Low confidence
20-year base term ends Apr 11, 2031
Grace period ended Oct 28, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected
Held by SanDisk Technologies, Inc.
Filed Apr 11, 2011 as application 13/084,464 · Granted Oct 28, 2014
Base term plus 10 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Apr 11, 2011
Apr 11, 2011
Term ends
Apr 21, 2031
Apr 21, 2031
Granted
Oct 28, 2014
Oct 28, 2014
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
10
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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 runs 10 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Low: the grace period for its third maintenance fee ended Oct 28, 2026 with no payment on record. 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 Apr 11, 2011, when this application, 13/084,464, was filed | Apr 11, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +10 days, USPTO patent term adjustment record | Apr 21, 2031 | 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 | The grace period ended with no payment on record in the fee file | grace period ended Oct 28, 2026 | Low confidence |
| Computed term end | The steps above, in order | Apr 21, 2031 | Low confidence |
This family
| US 8,874,515 | this patent Apr 2031 | Apr 2031 |
| US 9,183,236 | Lapsed on the fee record Nov 2023 | Nov 2023 |
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 |
|---|---|---|---|
| Sep 15, 2011 Reel 26912, frame 249 | Dinker, Darpan; Eckhardt, Andrew D.; Ouye, Darryl M. | Schooner Information Technology, Inc. | Assignment of Assignor's Interest |
| Jun 15, 2012 Reel 28380, frame 168 | Bodwin, James M | Schooner Information Technology, Inc. | Assignment of Assignor's Interest |
| Aug 2, 2012 Reel 28710, frame 950 | Schooner Information Technology, Inc. | SanDisk Enterprise IP, LLC | Assignment of Assignor's Interest |
| Mar 29, 2016 Reel 38295, frame 225 | SanDisk Enterprise IP LLC | SanDisk Technologies Inc. | Assignment of Assignor's Interest |
| May 25, 2016 Reel 38807, frame 850 | SanDisk Technologies Inc. | SanDisk Technologies LLC | Change of Name |
| Dec 31, 2024 Reel 69796, frame 423 | SanDisk Technologies LLC | SanDisk Technologies, Inc. | Assignment of Assignor's Interest |
| Apr 25, 2025 Reel 71050, frame 1 | SanDisk Technologies, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Agreement |
| Apr 25, 2025 Reel 71382, frame 1 | JPMorgan Chase Bank, N.A., as Agent | SanDisk Technologies, Inc. | Partial Release of Security Interests |
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
Oct 28
Grace period ended Oct 28, 2026 with no payment on record. The term ends early once USPTO posts the lapse
Apr 2031
Term ends Apr 21, 2031.
Note
The 10 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
82
later US patents cite this one
That is top 10% 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.