Patent EP0200197A2 successfully refreshed from Google Patents.
US4530353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary adhesive bandage
Assignee: Ethicon Inc
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Filing: 1982-11-12
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Granted: 1985-07-23
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Expires: 2002-11-12
Abstract
Abstract Adhesive bandages comprising a pad area and adjacent adhesive-coated areas are prepared from a single sheet of heat-fusible bandage material, preferably a nonwoven batt material, by overlapping the center portion of the material in a Z-fold to form a triple thickness pad area, and heat calendaring the material adjacent the desired pad area to provide a surface suitable for coating with adhesive. The integrity of the pad is preserved by heat fusing the material along the folded edges of the pad.
Inventors
- 👤 Nels J. Lauritzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:04
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/0276; A61F13/0203
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
An adhesive strip bandage constructed of a single piece of bulky, heat-fusible nonwoven fibrous material, said bandage having a central pad portion and adhesive-coated end portions extending outward therefrom, said pad portion comprising a triple thickness of said fibrous material formed by a Z-fold over the area of said pad portion, said adhesive coated end portions comprising a single thickness of said fibrous material heat fused into a thin sheet-like structure, said folded pad portion being secured to said adhesive-coated end portions by heat fusing along at least the folded edges thereof whereby said pad portion is secured in said folded configuration.
Claim 2
Dependent Claim
102 words
An adhesive strip bandage constructed of a single piece of bulky, heat-fusible nonwoven fibrous material, said bandage having a central pad portion and adhesive-coated end portions extending outward therefrom, said pad portion comprising a triple thickness of said fibrous material formed by a Z-fold over the area of said pad portion, said adhesive coated end portions comprising a single thickness of said fibrous material heat fused into a thin sheet-like structure, said folded pad portion being secured to said adhesive-coated end portions by heat fusing along at least the folded edges thereof whereby said pad portion is secured in said folded configuration.
Claim 3
Dependent Claim
22 words
A bandage of claim 1 wherein said nonwoven fibrous material comprises a mixture of absorbent fibers with at least 10% heat-fusible fibers.
Claim 4
Dependent Claim
17 words
A bandage of claim 2 wherein said heat-fusible fibers are staple length polyester core/polyethylene sheath conjugate fibers.
Claim 5
Dependent Claim
43 words
A bandage of claim 1 wherein said nonwoven fibrous material comprises a core of a mixture of absorbent fibers and heat-fusible polyester/polyethylene conjugate fibers, and an outer veneer on both faces of said core comprising a nonwoven web of heat-fusible polyester/polyethylene conjugate fibers.
Claim 6
Dependent Claim
25 words
A bandage of claim 4 wherein said absorbent fibers are selected from the group consisting of rayon, cotton, wood pulp, cotton linters, and mixtures thereof.
Claim 7
Dependent Claim
30 words
A bandage of claim 4 wherein the surface of said pad comprising a veneer of said heat-fusible fibers is heat glazed to impart nonsticking, wound release properties to said pad.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-22 | 1989-01-21 | 1989-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-22 | 1993-01-21 | 1993-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-22 | 1997-01-21 | 1997-07-23 | $7700.00 | Window Closed / Lapsed |