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Systems and Methods for Improved Connection to Wound Dressings in Conjunction with Reduced Pressure Wound Treatment Systems

US 9,452,246 In force, term unresolved
OverviewFamilyAssignmentsSources & methods

Term ends no later than Feb 6, 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 Dec 22, 2014 as application 14/579,664 · Granted Sep 27, 2016
Base term, 20 years from filing
Today
20 years from filing
2007 2027
Clock starts
Feb 6, 2007
Ends no later than
Feb 6, 2027
Granted
Sep 27, 2016
base term 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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
10
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. 2 of 2 maintenance fees are paid so far. 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 Feb 6, 2007, when application 11/702,822, the earliest non-provisional in its chain, was filed (this one was filed Dec 22, 2014)Feb 6, 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 events2 of 2 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Feb 6, 2027Medium confidence

This family

Application PCT/US2007/003065PCT application
no patent term
no patent term
US 7,651,484In force
Apr 2027
Apr 2027
US 8,235,939In force
Nov 2030
Nov 2030
Application PCT/US2007/006648PCT application
no patent term
no patent term
US 8,308,703In force
Oct 2027
Oct 2027
US 8,951,236In force
Sep 2027
Sep 2027
US 9,452,246this patent
no later than Feb 2027
no later than Feb 2027
US 10,307,518In force
Nov 2027
Nov 2027
8 of 10 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
Mar 20, 2015
Reel 35212, frame 671
Heaton, Keith Patrick; Robinson, Timothy Mark; Locke, Christopher BrianKCI Licensing, Inc.Assignment of Assignor's Interest
Sep 21, 2016
Reel 40098, frame 268
KCI USA, Inc.; Lifecell Corporation; KCI Licensing, Inc.Wilmington Trust, National Association, as Collateral AgentSecond Lien Security Agreement
Oct 7, 2016
Reel 40291, frame 237
KCI USA, Inc.; Lifecell Corporation; KCI Licensing, Inc.Wilmington Trust, National Association, as Collateral AgentLimited Third Lien Intellectual Property Security Agreement
Feb 8, 2017
Reel 41666, frame 320
Wilmington TrustKCI USA, Inc.Release of Security Interest Reel/Frame 040098/0268
Nov 7, 2019
Reel 50966, frame 547
Wilmington Trust, National AssociationKCI USA, Inc.; KCI Licensing, Inc.Release of Security Interest in Patents
Nov 7, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI USA, Inc.Release of Security Interest in Patents
Nov 7, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Licensing, Inc.Release of Security Interest in Patents
Aug 31, 2023
Reel 64790, frame 85
KCI Licensing, Inc.3M Innovative Properties CompanyAssignment of Assignor's Interest
Feb 1, 2024
Reel 66445, frame 336
3M Innovative Properties CompanySolventum Intellectual Properties CompanyAssignment of Assignor's 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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