Lapsed Aug 4, 2023 on the fee record · High confidence
20-year base term ends Mar 31, 2028
Second maintenance fee unpaid; grace period ended.
Held by Western Digital Israel Ltd.
Filed May 19, 2008 as application 12/123,252 · Granted Aug 4, 2015
Base term, 20 years from filing, plus 571 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 4, 2023
2008
2029
Clock starts
Mar 31, 2008
Mar 31, 2008
No longer in force
Aug 4, 2023
Aug 4, 2023
Granted
Aug 4, 2015
Aug 4, 2015
Term would have run to
Oct 23, 2029
Oct 23, 2029
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
571
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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 Oct 23, 2029: its 20-year base term plus 571 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 Mar 31, 2008, when application 12/059,107, the earliest non-provisional in its chain, was filed (this one was filed May 19, 2008) | Mar 31, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +571 days, USPTO patent term adjustment record | Oct 23, 2029 | 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 | 1 of 3 maintenance fees paid | lapsed Aug 4, 2023 | High confidence |
| Computed term end | The steps above, in order | Aug 4, 2023 | High confidence |
This family
| US 8,452,927 | Lapsed on the fee record May 2025 | May 2025 |
| US 8,583,878 | Lapsed on the fee record 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 | this patent 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 |
|---|---|---|---|
| Jul 21, 2008 Reel 21264, frame 869 | Nochimowski, Alain; Rave, Micha | 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 |
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 571 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2015 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.