US4569343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin application medicament
Assignee: Carl Freudenberg KG
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Filing: 1983-09-06
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Granted: 1986-02-11
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Expires: 2003-09-06
Abstract
Abstract A skin application medicament comprising a nonwoven fabric base coated on a side thereof with a medicament and having a layer with a planar direction, the layer containing at least 20% by weight of flat fibers, the fibers each having a major axis and a minor axis and an aspect ratio of 2:1 or more and wherein in a section of said layer, as cut in the direction of thickness, the average angle between the major axis of the fibers and the layer planar direction is not more than 75°.
Inventors
- 👤 Hideo Kimura
- 👤 Masahiro Tabuchi
- 👤 Motokazu Iwasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:26
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/425; D04H1/4258; A; A61; A61F; A61F13/00; A61F13/00051; A61F13/00063; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/42; A61L15/44; D04H1/4282; D04H1/4291; D04H1/4326; D04H1/4334; D04H1/435; D04H1/44; D04H1/46; D04H1/498; A61F13/15; A61F13/84; A61F13/8405; A61F2013/00089; A61F2013/00246; A61F2013/00361; A61F2013/00544; A61F2013/00604; A61F2013/00727; A61F2013/00731; A61F2013/00744; A61F2013/00902; A61F13/53; A61F2013/530131; A61F2013/53016; A61L2300/00; A61L2300/10; A61L2300/102; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/252; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T442/00; Y10T442/20; Y10T442/2008; Y10T442/2525; Y10T442/60; Y10T442/608; Y10T442/609; Y10T442/611; Y10T442/659; Y10T442/668
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
90 words
A skin application medicament comprising a nonwoven fabric base coated on a side thereof with a medicament and having a layer with a planar direction, the layer containing at least 20% by weight of flat fibers, the fibers each having a major axis and a minor axis and an aspect ratio of 2:1 or more and wherein in a section of said layer, as cut in the direction of thickness, the average angle between the major axis of the fibers and the layer planar direction is not more than 75°.
Claim 2
Dependent Claim
90 words
A skin application medicament comprising a nonwoven fabric base coated on a side thereof with a medicament and having a layer with a planar direction, the layer containing at least 20% by weight of flat fibers, the fibers each having a major axis and a minor axis and an aspect ratio of 2:1 or more and wherein in a section of said layer, as cut in the direction of thickness, the average angle between the major axis of the fibers and the layer planar direction is not more than 75°.
Claim 3
Dependent Claim
15 words
The skin application medicament of claim 1, wherein the fiber is 10 denier or below.
Claim 4
Dependent Claim
15 words
The skin application medicament of claim 1, wherein the nonwoven fabric is a two-layer construction.
Claim 5
Dependent Claim
15 words
The skin application medicament of claim 1, wherein the nonwoven fabric is a three-layer construction.
Claim 6
Dependent Claim
19 words
The skin application medicament of claim 1, wherein the fibers are polypropylene, polyethylene, polyamide, polyester, cellulose or mixtures thereof.
Claim 7
Dependent Claim
18 words
The skin application medicament of claim 1, wherein the coated medicament includes kaolin clay, glycerin, water and polyvinylalcohol.
Claim 8
Dependent Claim
15 words
The skin application medicament of claim 1, wherein the fiber has an ellipsoidal cross section.
Claim 9
Dependent Claim
15 words
The skin application medicament of claim 1, wherein the fiber has a quadrangular cross section.
Claim 10
Dependent Claim
17 words
The skin application medicament of claim 1, wherein the fiber has a "<" or "C" cross section.
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) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |