Patent US4459332A successfully refreshed from Google Patents.
US4459332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flocked fabric laminate for protection against chemical agents
Assignee: Wyeth Holdings LLC
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Filing: 1983-09-12
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Granted: 1984-07-10
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Expires: 2003-09-12
Abstract
Abstract An air and water vapor permeable, toxic vapor absorptive fabric material comprising, in superimposed relationship, (a) a first inactive, woven or non-woven fabric, (b) a first air and water vapor permeable adhesive layer having activated carbon fiber flocking positioned on the surface thereof away from said (a), and activated carbon powder deposited in the voids formed between said flocking, (c) a second air and water vapor permeable adhesive layer and (d) a second, inactive, woven or non-woven fabric.
Inventors
- 👤 Robert D. Giglia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:54
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/022; B32B5/024; D; D06; D06M; D06M11/00; D06M11/73; D06M11/74; B32B2307/00; B32B2307/70; B32B2307/724; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23914; Y10T428/23921; Y10T428/23943; Y10T428/23993; Y10T428/25; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/292; Y10T428/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
82 words
An air and water permeable, toxic vapor absorptive fabric material comprising, in superimposed relationship, (a) a first inactive, woven or non-woven fabric, (b) a first air and water permeable open-celled adhesive foam layer having activated carbon fiber flocking positioned substantially perpendicularly to the surface thereof away from said (a) and activated carbon powder deposited in the voids formed between said flocking, (c) a second air and water vapor permeable open-celled adhesive foam layer and (d) a second inactive, woven or non-woven fabric.
Claim 2
Dependent Claim
82 words
An air and water permeable, toxic vapor absorptive fabric material comprising, in superimposed relationship, (a) a first inactive, woven or non-woven fabric, (b) a first air and water permeable open-celled adhesive foam layer having activated carbon fiber flocking positioned substantially perpendicularly to the surface thereof away from said (a) and activated carbon powder deposited in the voids formed between said flocking, (c) a second air and water vapor permeable open-celled adhesive foam layer and (d) a second inactive, woven or non-woven fabric.
Claim 3
Dependent Claim
17 words
A material in accordance with claim 1 wherein said voids are substantially filled with said carbon powder.
References Cited (Backward Citations)
US4411948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-10 | 1988-01-09 | 1988-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-10 | 1992-01-09 | 1992-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-10 | 1996-01-09 | 1996-07-10 | $7700.00 | Window Closed / Lapsed |