Also listed on SanDisk, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 29, 2030 · High confidence
20-year base term ends Apr 15, 2028
Held by SanDisk Technologies, Inc.
Filed Apr 15, 2008 as application 12/103,277 · Granted Sep 27, 2011
Base term plus 654 days of patent term adjustment (USPTO delay)
Today
2008
2030
Clock starts
Apr 15, 2008
Apr 15, 2008
Term ends
Jan 29, 2030
Jan 29, 2030
Granted
Sep 27, 2011
Sep 27, 2011
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
654
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,566,505, to Jan 29, 2030. The term already ends on or before that date, so the cap shortened nothing.
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.
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 654 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Apr 15, 2008, when this application, 12/103,277, was filed | Apr 15, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +654 days, USPTO patent term adjustment record | Jan 29, 2030 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,566,505) | resolves to Jan 29, 2030, no earlier than this term, so no change | 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 | Jan 29, 2030 | High confidence |
This family
| US 8,566,505 | In force Jan 2030 | Jan 2030 |
| US 8,028,123 | this patent Jan 2030 | Jan 2030 |
| Application 12/424,464 | Abandoned not computed | not computed |
| US 8,180,954 | In force no later than Jun 2029 | no later than Jun 2029 |
| US 8,185,778 | In force May 2029 | May 2029 |
| US 8,271,722 | Lapsed on the fee record Sep 2024 | Sep 2024 |
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 |
|---|---|---|---|
| Jun 27, 2008 Reel 21164, frame 971 | Kilzer, Kevin L; Ellis, Robert W; Fitzgerald, Alan A; Sterbenz, Rudolph J | Adtron, Inc. | Assignment of Assignor's Interest |
| Jul 13, 2011 Reel 26584, frame 95 | Kilzer, Kevin L.; Ellis, Robert W.; Sterbenz, Rudolph J. | Adtron Corporation | Nunc Pro Tunc Assignment |
| Jul 13, 2011 Reel 26584, frame 886 | Adtron Corporation | Smart Modular Technologies (Az), Inc. | Change of Name |
| May 29, 2013 Reel 30508, frame 843 | Smart Modular Technologies (Az), Inc. | Smart Storage Systems (Az), Inc. | Change of Name |
| May 29, 2013 Reel 30508, frame 855 | Smart Storage Systems (Az), Inc. | Smart Storage Systems, Inc. | Change of Name |
| Mar 29, 2016 Reel 38290, frame 33 | Smart Storage Systems, Inc. | SanDisk Technologies Inc. | Assignment of Assignor's Interest |
| May 25, 2016 Reel 38809, frame 600 | 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
Jan 2030
Term ends Jan 29, 2030. No further fees fall due before then
Note
The 654 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,566,505, ends no earlier than this term, so it caps nothing.
Citations
49
later US patents cite this one
That is top 25% of utility patents granted in 2011 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.