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Crosslinked gels comprising polyalkyleneimines, and their uses as medical devices

US 9,393,344 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Square, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Feb 13, 2029 · High confidence

Filed Jan 11, 2007 as application 11/653,433 · Granted Jul 19, 2016
Base term plus 1318 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2007 2029
Clock starts
Jan 11, 2007
Term ends
Feb 13, 2029
Granted
Jul 19, 2016
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
1,318
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,323,262, US 8,410,189, US 8,846,022.
2 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.
5
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 1318 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are paid so far. Confidence: High. 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 11, 2007, when this application, 11/653,433, was filedJan 11, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1318 days, USPTO patent term adjustment recordAug 21, 2030High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,323,262, US 8,410,189, US 8,846,022)capped to Feb 13, 2029High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 13, 2029High confidence

This family

US 9,393,344this patent
Feb 2029
Feb 2029
US 8,262,608In force
Feb 2028
Feb 2028
US 8,410,189In force
Jun 2029
Jun 2029
US 8,323,262In force
Oct 2031
Oct 2031
US 8,846,022In force
Feb 2029
Feb 2029
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 16, 2007
Reel 19301, frame 268
Stockman, Kenneth E.; Carnahan, Michael A.; D'alessio, Keith R.; Grinstaff, Mark W.Hyperbranch Medical Technology, Inc.Assignment of Assignor's Interest
Sep 15, 2008
Reel 21533, frame 21
Hyperbranch Medical Technology, Inc.Square 1 BankAssignment of Assignor's Interest
Sep 4, 2018
Reel 46775, frame 564
Pacific Western BankHyperbranch Medical Technology, Inc.Release of 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.

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