Lapsed May 8, 2022 on the fee record · Medium confidence
20-year base term ends Sep 2, 2031
Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.
First maintenance fee unpaid; grace period ended.
Sep 2, 2011
May 8, 2022
May 8, 2018
Sep 2, 2031
Its term would have run to Sep 2, 2031: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Sep 2, 2011, when application 13/224,415, the earliest non-provisional in its chain, was filed (this one was filed Jan 15, 2016) | Sep 2, 2031 | 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 on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | lapsed May 8, 2022 | High confidence |
| Computed term end | The steps above, in order | May 8, 2022 | Medium confidence |
This family
| US 8,645,978 | Lapsed on the fee record Feb 2022 | Feb 2022 |
| US 9,305,012 | Lapsed on the fee record Apr 2024 | Apr 2024 |
| US 9,965,542 | this patent May 2022 | May 2022 |
| US 10,430,443 | In force Sep 2031 | Sep 2031 |
| US 10,769,177 | In force Sep 2031 | Sep 2031 |
| US 11,372,897 | In force Sep 2031 | Sep 2031 |
| Application 17/825,658 | Abandoned not computed | not computed |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Aug 26, 2020 Reel 53867, frame 581 | Pure Storage, Inc. | Barclays Bank PLC as Administrative Agent | Security Interest |
| Jun 11, 2025 Reel 71558, frame 523 | Barclays Bank PLC, as Administrative Agent | Pure Storage, Inc. | Termination and Release of Security Interest in Patent Rights |
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
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than May 8, 2022. We will not guess the cap.