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Biopolymeric Membranes

US 8,821,917 Term ended
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Oct 23, 2014 (General Electric Capital Corporation).

Term ended Oct 22, 2024 · High confidence

Filed Oct 4, 2010 as application 12/897,155 · Granted Sep 2, 2014
Base term, 20 years from filing
Today
20 years from filing
Term ended Oct 22, 2024
2004 2026
Clock starts
Oct 22, 2004
Term ended
Oct 22, 2024
Granted
Sep 2, 2014
base term after the term ends fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
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.
3
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. All three maintenance fees were paid, so no fee lapse ended it. 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 Oct 22, 2004, when application 10/971,435, the earliest non-provisional in its chain, was filed (this one was filed Oct 4, 2010)Oct 22, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderOct 22, 2024High confidence

This family

US 7,807,192In force
Feb 2029
Feb 2029
Application PCT/US2005/038331PCT application
no patent term
no patent term
US 8,821,917this patent
Oct 2024
Oct 2024
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
Oct 4, 2010
Reel 25086, frame 216
Li, Shu-tung; Yuen, Debbie; Hansen, PeggyCollagen Matrix, Inc.Assignment of Assignor's Interest
Oct 23, 2014
Reel 34021, frame 474
Collagen Matrix, Inc.General Electric Capital Corporation, as Collateral AgentSecurity Interest
Nov 14, 2015
Reel 37111, frame 808
General Electric Capital Corporation, as Retiring AgentHealthcare Financial Solutions, LLC, as Successor AgentAssignment of Intellectual Property Security Agreement
Aug 1, 2019
Reel 49933, frame 378
Collagen Matrix, Inc.The Northwestern Mutual Life Insurance CompanySecurity Interest
Aug 1, 2019
Reel 49934, frame 317
Capital One, National AssociationCollagen Matrix, Inc.Release of Security Interest in Intellectual Property
Aug 1, 2019
Reel 51594, frame 368
Collagen Matrix, Inc.Golub Capital, LLCFirst Lien Patent Security Agreement
Aug 1, 2024
Reel 68256, frame 450
The Northwestern Mutual Life Insurance CompanyCollagen Matrix, Inc.Release of Security Interest in Patents Recorded at R/F 049933/0378
Jan 26, 2026
Reel 73583, frame 580
Golub Capital Markets LLC, as Administrative AgentCollagen Matrix, 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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