Collateral for a security interest recorded Feb 22, 2024 (JPMorgan Chase Bank, N.A., as the Agent).
Lapsed Nov 12, 2025 on the fee record · High confidence
20-year base term ends Jan 24, 2028
Third maintenance fee unpaid; grace period ended.
Held by Western Digital Israel Ltd.
Filed Feb 11, 2008 as application 12/029,356 · Granted Nov 12, 2013
Base term, 20 years from filing, plus 1184 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 12, 2025
2008
2031
Clock starts
Jan 24, 2008
Jan 24, 2008
No longer in force
Nov 12, 2025
Nov 12, 2025
Granted
Nov 12, 2013
Nov 12, 2013
Term would have run to
Apr 22, 2031
Apr 22, 2031
base term
patent term adjustment
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
1,184
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.
12
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Apr 22, 2031: its 20-year base term plus 1184 days of term adjustment for prosecution delay. 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 Jan 24, 2008, when application 12/019,573, the earliest non-provisional in its chain, was filed (this one was filed Feb 11, 2008) | Jan 24, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1184 days, USPTO patent term adjustment record | Apr 22, 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 | 2 of 3 maintenance fees paid | lapsed Nov 12, 2025 | High confidence |
| Computed term end | The steps above, in order | Nov 12, 2025 | High confidence |
This family
| US 8,452,927 | Lapsed on the fee record May 2025 | May 2025 |
| US 8,583,878 | this patent Nov 2025 | Nov 2025 |
| US 8,370,850 | Lapsed on the fee record Feb 2025 | Feb 2025 |
| US 8,359,654 | Lapsed on the fee record Jan 2025 | Jan 2025 |
| US 10,289,349 | In force Mar 2037 | Mar 2037 |
| US 8,959,285 | In force Jun 2029 | Jun 2029 |
| US 9,098,506 | Lapsed on the fee record Aug 2023 | Aug 2023 |
| Application 12/123,304 | Abandoned not computed | not computed |
8 of 12 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 |
|---|---|---|---|
| Apr 14, 2008 Reel 20800, frame 359 | Nochimowski, Alain; Rave, Micha; Stern, Ori; Santos Garcia, Jose Carlos; Lopez Martin, Antonio Manuel | SanDisk Il Ltd. | Assignment of Assignor's Interest |
| Aug 21, 2020 Reel 53574, frame 513 | SanDisk Il Ltd. | Western Digital Israel Ltd. | Change of Name |
| Jan 12, 2024 Reel 66114, frame 481 | Western Digital Israel Ltd. | Western Digital Technologies, Inc. | Assignment of Assignor's Interest |
| Feb 6, 2024 Reel 66507, frame 538 | Western Digital Technologies, Inc. | Western Digital Israel Ltd. | This Is a Mutual Rescission Agrement of a Previously Recorded Assignment at Reel/Frame: 066114/0481 |
| Feb 22, 2024 Reel 66648, frame 206 | Western Digital Technologies, Inc. | JPMorgan Chase Bank, N.A., as the Agent | Patent Collateral Agreement (DDTL) |
| Feb 22, 2024 Reel 66648, frame 284 | Western Digital Technologies, Inc. | JPMorgan Chase Bank, N.A., as the Agent | Patent Collateral Agreement (AR) |
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.
What's changing
Note
The 1184 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
later US patents cite this one
That is top 25% 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.