Also listed on Contour Semiconductor, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Nov 14, 2024 (JPMorgan Chase Bank, N.A.).
Term ends Jun 30, 2030 · High confidence
20-year base term ends Jun 30, 2030
Filed Feb 23, 2015 as application 14/628,925 · Granted Feb 23, 2016
Base term, 20 years from filing
Today
2010
2030
Clock starts
Jun 30, 2010
Jun 30, 2010
Term ends
Jun 30, 2030
Jun 30, 2030
Granted
Feb 23, 2016
Feb 23, 2016
base term
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,007,801, to Jun 30, 2030. The term already ends on or before that date, so the cap shortened nothing.
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.
4
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jun 30, 2010, when application 12/827,545, the earliest non-provisional in its chain, was filed (this one was filed Feb 23, 2015) | Jun 30, 2030 | 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 | Disclaimer resolved from the filed document (refs US 9,007,801) | resolves to Jun 30, 2030, no earlier than this term, so no change | 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 | Jun 30, 2030 | High confidence |
This family
| US 8,035,416 | Lapsed on the fee record Oct 2019 | Oct 2019 |
| US 8,451,024 | Lapsed on the fee record May 2021 | May 2021 |
| US 9,007,801 | In force Apr 2031 | Apr 2031 |
| US 9,270,269 | this patent Jun 2030 | Jun 2030 |
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 23, 2015 Reel 35008, frame 13 | Shepard, Daniel R. | Contour Semiconductor, Inc. | Assignment of Assignor's Interest |
| May 21, 2015 Reel 35748, frame 909 | Contour Semiconductor, Inc. | HGST Netherlands B.V. | Assignment of Assignor's Interest |
| Jun 2, 2015 Reel 35831, frame 594 | Contour Semiconductor, Inc. | HGST, Inc. | Corrective Assignment to Correct the Name and Address of the Assignee Previously Recorded on Reel 035748 Frame 0909. Assignor(S) Hereby Confirms the Name and Address of the Assignee Si HGST, INC.,3403 Yerba Buena Road,san Jose, Ca 95135. |
| 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 |
| Aug 23, 2024 Reel 68762, frame 494 | SanDisk Technologies, Inc. | JPMorgan Chase Bank, N.A., as the Agent | Patent Collateral Agreement |
| Oct 11, 2024 Reel 69168, frame 273 | SanDisk Technologies, Inc. | Western Digital Technologies, Inc. | Assignment of Assignor's Interest |
| Nov 14, 2024 Reel 69411, frame 208 | Western Digital Technologies, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Agreement (SUPPLEMENTAL) |
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
Jun 2030
Term ends Jun 30, 2030. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,007,801, ends no earlier than this term, so it caps nothing.
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.