Lapsed Mar 25, 2026 on the fee record · High confidence
20-year base term ends May 14, 2029
Third maintenance fee unpaid; grace period ended.
May 14, 2009
Mar 25, 2026
Mar 25, 2014
May 14, 2029
Its term would have run to May 14, 2029: 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. Confidence: High. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts May 14, 2009, when application 12/466,310, the earliest non-provisional in its chain, was filed (this one was filed Jul 25, 2011) | May 14, 2029 | 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 8,030,297, US 8,658,626, US 8,680,083) | resolves to May 14, 2029, 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 | lapsed Mar 25, 2026 | High confidence |
| Computed term end | The steps above, in order | Mar 25, 2026 | High confidence |
This family
| US 9,132,087 | Lapsed on the fee record Sep 2023 | Sep 2023 |
| US 8,030,297 | Lapsed on the fee record Oct 2023 | Oct 2023 |
| US 8,318,817 | Lapsed on the fee record Nov 2024 | Nov 2024 |
| Application PCT/US2009/051172 | PCT application no patent term | no patent term |
| US 8,546,363 | Lapsed on the fee record Oct 2021 | Oct 2021 |
| US 8,828,980 | Lapsed on the fee record Sep 2022 | Sep 2022 |
| US 8,658,626 | Lapsed on the fee record Feb 2022 | Feb 2022 |
| US 8,680,082 | this patent Mar 2026 | Mar 2026 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Aug 19, 2011 Reel 26778, frame 229 | Harris, Jeffrey P. | The Regents of the University of California | Assignment of Assignor's Interest |
| Aug 19, 2011 Reel 26778, frame 262 | Lichter, Jay; Vollrath, Benedikt; Duron, Sergio G.; Piu, Fabrice; Dellamary, Luis A.; Ye, Qiang; Lebel, Carl; Scaife, Michael Christopher; Trammel, Andrew M. | Otonomy, 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.
A terminal disclaimer resolved from the filed document, referencing US 8,030,297, US 8,658,626, US 8,680,083, ends no earlier than this term, so it caps nothing.