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US

Small Volume Oral Transmucosal Dosage Forms Containing Sufentanil for Treatment of Pain

US 8,226,978 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jun 30, 2023 (Cibc Bank USA).

Term ends Jan 23, 2027 · Medium confidence

Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 8,231,900), so the cap could be lower.

Filed Jan 6, 2010 as application 12/521,949 · Granted Jul 24, 2012
Base term plus 18 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2007 2027
Clock starts
Jan 5, 2007
Term ends
Jan 23, 2027
Granted
Jul 24, 2012
base term patent term adjustment 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
18
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,231,900, to Jan 23, 2027. The term already ends on or before that date, so the cap shortened nothing.
3 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.
30
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 runs 18 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jan 5, 2007, when application 11/650,174, the earliest non-provisional in its chain, was filed (this one was filed Jan 6, 2010)Jan 5, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+18 days, USPTO patent term adjustment recordJan 23, 2027High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,231,900)resolves to Jan 23, 2027, no earlier than this term, so no changeMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJan 23, 2027Medium confidence

This family

US 8,357,114In force
Feb 2027
Feb 2027
US 8,202,535In force
Oct 2030
Oct 2030
US 8,252,328In force
no later than Jan 2027
no later than Jan 2027
Application PCT/US2007/000527PCT application
no patent term
no patent term
Application PCT/US2007/000529PCT application
no patent term
no patent term
Application PCT/US2007/000528PCT application
no patent term
no patent term
US 9,066,847In force
Aug 2031
Aug 2031
US 8,252,329In force
no later than Aug 2027
no later than Aug 2027
8 of 30 applications in this family shown, earliest filings first. 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.
RecordedAssignorAssigneeConveyance
Jan 13, 2010
Reel 23772, frame 184
Palmer, Pamela; Schreck, Thomas; Tzannis, Stelios; Hamel, Larry; Poutiatine, Andrew I.; Rampersaud, Charles; Edwards, BruceAcelrx Pharmaceuticals, Inc.Assignment of Assignor's Interest
Apr 25, 2023
Reel 63434, frame 858
Acelrx Pharmaceuticals, Inc.Vertical Pharmaceuticals, LLCAssignment of Assignor's Interest
Jun 30, 2023
Reel 64133, frame 94
Vertical Pharmaceuticals, LLCCibc Bank USASecurity 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.

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