Term ends May 29, 2032 · High confidence
20-year base term ends Dec 12, 2031
Held by SanDisk Technologies, Inc.
Filed Mar 7, 2013 as application 13/789,375 · Granted Jan 5, 2016
Base term plus 183 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2011
2032
Clock starts
Dec 12, 2011
Dec 12, 2011
Term ends
May 29, 2032
May 29, 2032
Granted
Jan 5, 2016
Jan 5, 2016
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
183
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 8,824,183.
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.
5
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 183 days past its 20-year base term on 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 Dec 12, 2011, when application 13/323,780, the earliest non-provisional in its chain, was filed (this one was filed Mar 7, 2013) | Dec 12, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +183 days, USPTO patent term adjustment record | Jun 12, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,824,183) | capped to May 29, 2032 | 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 | May 29, 2032 | High confidence |
This family
| US 8,824,183 | In force May 2032 | May 2032 |
| Application PCT/US2011/064700 | PCT application no patent term | no patent term |
| US 9,227,456 | this patent May 2032 | May 2032 |
| Application PCT/US2013/046379 | PCT application no patent term | no patent term |
| US 8,958,228 | In force no later than Dec 2031 | no later than Dec 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 |
|---|---|---|---|
| Mar 28, 2013 Reel 30104, frame 850 | Chien, Henry; Lee, Yao-sheng; Samachisa, George; Alsmeier, Johann | SanDisk 3D LLC | Assignment of Assignor's Interest |
| Mar 30, 2016 Reel 38300, frame 665 | SanDisk 3D LLC. | SanDisk Technologies Inc. | Assignment of Assignor's Interest |
| Apr 25, 2016 Reel 38520, frame 552 | SanDisk 3D LLC | SanDisk Technologies Inc. | Corrective Assignment to Correct the Incorrect Listed Patent Number 8853569 to the Correct Patent Number 8883569 Previously Recorded on Reel 038300 Frame 0665. Assignor(S) Hereby Confirms the Assignment. |
| May 25, 2016 Reel 38807, frame 898 | 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 2032
Term ends May 29, 2032. Maintenance fees still fall due before then
Note
The 183 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 8,824,183.
Citations
252
later US patents cite this one
That is top 1% 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.