Term ends May 19, 2031 · High confidence
20-year base term ends Jun 30, 2030
Held by SanDisk Technologies, Inc.
Filed Jun 30, 2010 as application 12/827,761 · Granted Jan 8, 2013
Base term plus 323 days of patent term adjustment (USPTO delay)
Today
2010
2031
Clock starts
Jun 30, 2010
Jun 30, 2010
Term ends
May 19, 2031
May 19, 2031
Granted
Jan 8, 2013
Jan 8, 2013
base term
patent term adjustment
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
323
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
26
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 323 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Jun 30, 2010, when this application, 12/827,761, was filed | Jun 30, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +323 days, USPTO patent term adjustment record | May 19, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 19, 2031 | High confidence |
This family
| US 8,349,681 | this patent May 2031 | May 2031 |
| US 8,187,936 | Lapsed on the fee record May 2024 | May 2024 |
| US 8,198,672 | In force Nov 2030 | Nov 2030 |
| US 8,193,054 | In force Nov 2030 | Nov 2030 |
| Application PCT/US2011/042566 | PCT application no patent term | no patent term |
| US 8,330,208 | In force Jun 2030 | Jun 2030 |
| US 8,450,791 | In force Jun 2030 | Jun 2030 |
| US 8,283,228 | In force Jun 2030 | Jun 2030 |
8 of 26 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 27, 2010 Reel 25537, frame 768 | Alsmeier, Johann; Samachisa, George | SanDisk Corporation | Assignment of Assignor's Interest |
| May 17, 2011 Reel 26294, frame 480 | SanDisk Corporation | 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
May 2031
Term ends May 19, 2031. No further fees fall due before then
Note
The 323 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
583
later US patents cite this one
That is top 1% of utility patents granted in 2013 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.