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Bioadhesive Drug Formulations for Oral Transmucosal Delivery

US 8,252,328 In force, term unresolved
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jun 30, 2023 (Cibc Bank USA).

Term ends no later than Jan 5, 2027 · Medium confidence

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.

Filed Jan 5, 2007 as application 11/650,227 · Granted Aug 28, 2012
Base term, 20 years from filing
Today
20 years from filing
2007 2027
Clock starts
Jan 5, 2007
Ends no later than
Jan 5, 2027
Granted
Aug 28, 2012
base term 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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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 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

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 this application, 11/650,227, was filedJan 5, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Jan 5, 2027Medium confidence

This family

US 8,357,114In force
Feb 2027
Feb 2027
US 8,202,535In force
Oct 2030
Oct 2030
US 8,252,328this patent
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
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, 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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