Lapsed Aug 30, 2024 on the fee record · High confidence
20-year base term ends Dec 7, 2032
Second maintenance fee unpaid; grace period ended.
Held by SanDisk Technologies, Inc.
Filed Jun 8, 2015 as application 14/733,919 · Granted Aug 30, 2016
Base term, 20 years from filing
Today
Lapsed Aug 30, 2024
2012
2032
Clock starts
Dec 7, 2012
Dec 7, 2012
No longer in force
Aug 30, 2024
Aug 30, 2024
Granted
Aug 30, 2016
Aug 30, 2016
Term would have run to
Dec 7, 2032
Dec 7, 2032
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
4
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 Dec 7, 2032: its 20-year base term, with no 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 Dec 7, 2012, when application 13/707,895, the earliest non-provisional in its chain, was filed (this one was filed Jun 8, 2015) | Dec 7, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 30, 2024 | High confidence |
| Computed term end | The steps above, in order | Aug 30, 2024 | High confidence |
This family
| US 8,786,023 | Lapsed on the fee record Jul 2022 | Jul 2022 |
| US 9,054,031 | In force Dec 2032 | Dec 2032 |
| US 9,431,460 | this patent Aug 2024 | Aug 2024 |
| US 9,812,503 | In force Dec 2032 | Dec 2032 |
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 |
|---|---|---|---|
| Feb 11, 2016 Reel 37713, frame 545 | Contour Semiconductor, Inc. | HGST, Inc. | Assignment of Assignor's Interest |
| Jun 7, 2016 Reel 38829, frame 283 | Shepard, Daniel R.; Apodaca, Mac D.; Trent, Thomas Michael; Hsu, James Juen | Contour Semiconductor, Inc. | Assignment of Assignor's Interest |
| Jul 19, 2016 Reel 39389, frame 684 | HGST, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Agreement |
| Aug 16, 2016 Reel 39689, frame 950 | JPMorgan Chase Bank, N.A., as Collateral Agent | HGST, Inc. | Release of Security Interest |
| Aug 24, 2018 Reel 46939, frame 587 | HGST, Inc. | Western Digital Technologies, Inc. | Assignment of Assignor's Interest |
| Feb 8, 2022 Reel 58965, frame 535 | Jpmorgan Chase Bank, N.a. | Western Digital Technologies, Inc. | Release of Security Interest at Reel 039389 Frame 0684 |
| Aug 21, 2023 Reel 64715, frame 1 | Western Digital Technologies, Inc. | Jpmorgan Chase Bank, N.a. | Patent Collateral Agreement - A&r Loan Agreement |
| Aug 21, 2023 Reel 67045, frame 156 | Western Digital Technologies, Inc. | Jpmorgan Chase Bank, N.a. | Patent Collateral Agreement - DDTL Loan Agreement |
| May 29, 2024 Reel 67567, frame 682 | Western Digital Technologies, Inc. | SanDisk Technologies, Inc. | Assignment of Assignor's Interest |
| Jun 27, 2024 Reel 67982, frame 32 | SanDisk Technologies, Inc. | SanDisk Technologies, Inc. | 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.
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Alerts on its grants, lapses and transfers.
Citations
0
later US patents cite this one
That is below the median 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.