Term ends no later than Jan 5, 2027 · Medium confidence
20-year base term ends Jan 5, 2027
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Jan 5, 2007
Jan 5, 2027
Aug 28, 2012
This patent's term is 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. All three maintenance fees are recorded paid; no more fees are due. 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 Jan 5, 2007, when this application, 11/650,227, was filed | Jan 5, 2027 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Jan 5, 2027 | Medium confidence |
This family
| US 8,357,114 | In force Feb 2027 | Feb 2027 |
| US 8,202,535 | In force Oct 2030 | Oct 2030 |
| US 8,252,328 | this patent no later than Jan 2027 | no later than Jan 2027 |
| Application PCT/US2007/000527 | PCT application no patent term | no patent term |
| Application PCT/US2007/000529 | PCT application no patent term | no patent term |
| Application PCT/US2007/000528 | PCT application no patent term | no patent term |
| US 9,066,847 | In force Aug 2031 | Aug 2031 |
| US 8,252,329 | In force no later than Aug 2027 | no later than Aug 2027 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| May 31, 2007 Reel 19363, frame 109 | Tzannis, Stelios; Palmer, Pamela; Schreck, Thomas; Hamel, Larry; Poutiatine, Andrew I. | Acelrx Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Jan 15, 2010 Reel 23793, frame 667 | Tzannis, Stelios; Palmer, Pamela; Schreck, Thomas; Hamel, Larry; Poutiatine, Andrew I. | Acelrx Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Apr 25, 2023 Reel 63434, frame 858 | Acelrx Pharmaceuticals, Inc. | Vertical Pharmaceuticals, LLC | Assignment of Assignor's Interest |
| Jun 30, 2023 Reel 64133, frame 94 | Vertical Pharmaceuticals, LLC | Cibc Bank USA | Security 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.
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 Jan 5, 2027. We will not guess the cap.