Lapsed Sep 19, 2025 on the fee record · High confidence
20-year base term ends Sep 30, 2035
Second maintenance fee unpaid; grace period ended.
Held by Pure Storage, Inc.
Filed Sep 30, 2015 as application 14/871,662 · Granted Sep 19, 2017
Base term, 20 years from filing, plus 133 days of patent term adjustment (USPTO delay)
Today
Lapsed Sep 19, 2025
2015
2036
Clock starts
Sep 30, 2015
Sep 30, 2015
No longer in force
Sep 19, 2025
Sep 19, 2025
Granted
Sep 19, 2017
Sep 19, 2017
Term would have run to
Feb 10, 2036
Feb 10, 2036
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
133
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.
5
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 Feb 10, 2036: its 20-year base term plus 133 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 Sep 30, 2015, when this application, 14/871,662, was filed | Sep 30, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +133 days, USPTO patent term adjustment record | Feb 10, 2036 | 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 Sep 19, 2025 | High confidence |
| Computed term end | The steps above, in order | Sep 19, 2025 | High confidence |
This family
| US 9,768,953 | this patent Sep 2025 | Sep 2025 |
| US 10,211,983 | In force Dec 2026 | Dec 2026 |
| US 10,887,099 | In force Dec 2026 | Dec 2026 |
| US 11,489,668 | In force Dec 2026 | Dec 2026 |
| US 11,838,412 | In force Dec 2026 | Dec 2026 |
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 |
|---|---|---|---|
| Sep 12, 2016 Reel 39702, frame 366 | Miller, Ethan L.; Bernat, Andrew R. | Pure Storage, Inc. | Assignment of Assignor's Interest |
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
Note
The 133 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2017 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.