US3285245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent wound dressing
Assignee: 3M Co
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Filing: 1964-07-06
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Granted: 1966-11-15
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Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Charles L Eldredge
- 👤 Karl J Petters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/0203; A61F13/01; A61F13/01021; A61F2013/00089; A61F2013/00217; A61F2013/00246; A61F2013/00255; A61F2013/00361; A61F2013/00727; A61F2013/00731; A61F2013/00855; A61F2013/00863
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
AN ABSORBENT WOUND DRESSING CAPABLE OF ABSORBING WOUND EXUDATE WITHOUT STICKING TO THE WOUND COMPRISING AN ABSORBENT BACKING FOR ABSORBING WOUND EXUDATE AND A THIN, HIGHLY AND NATURALLY POROUS THERMOPLASTIC FACING, INERT TO WOUND EXUDATE, AND THROUGH WHICH WOULD EXUDATE MAY READILY PASS, AND FACING COMPRISING A THIN SELF-SUSTAINING, FILM OF INERT, HYDROPHOBIC, AND NONABSORBENT THERMOPLASTIC FIBERS FUSED AND COALESCED WITH ONE ANOTHER TO FORM A DICONTINUOUS FILM FACING SAID BACKING AND CONTAINING NUMEROUS, IRREGULARLY SHAPED TINY OPENING FOR FACILITATING THE PASSAGE OF EXUDATE THERETHROUGH FROM A WOUND TO SAID ABSORBENT BACKING.
References Cited (Backward Citations)
US3006338A
Cited
US2923298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |