Patent US4861632A successfully refreshed from Google Patents.
US4861632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated bag
Assignee: Individual
•
Filing: 1988-04-19
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Granted: 1989-08-29
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Expires: 2008-04-19
Abstract
Abstract A laminated packaging material from which package type containers are fabricated for storing or transporting a variety of products ranging from dry food-stuffs to electronic equipment where maintenance of a dry environment is a requirement, comprising an outer imperforate water impervious layer, a middle layer of absorbent material and an inner perforated moisture impervious layer.
Inventors
- 👤 Michael A. Caggiano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:13
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/10; B32B7/00; B32B7/02; B32B27/30; B32B27/304; B32B27/32; B32B29/00; B32B29/06; B65; B65D; B65D81/00; B65D81/24; B65D81/26; B65D81/266; B65D81/267; B32B2260/00; B32B2260/02; B32B2260/028; B32B2307/00; B32B2307/70; B32B2307/714; B32B2307/7145; B32B2307/724; B32B2307/7242; B32B2307/7246; B32B2307/726; B32B2317/00; B32B2317/12; B32B2323/00; B32B2323/04; B32B2323/10; B32B2327/00; B32B2439/00; B32B2439/40; B32B2439/46; B32B2439/70; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/1307; Y10T428/1334; Y10T428/1338; Y10T428/1341; Y10T428/1352; Y10T428/24; Y10T428/24273; Y10T428/24777; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/31678; Y10T428/31703; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31906; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
155 words
A sealed bag container formed from a laminated packaging material able to establish and maintain a dry environment within said container comprising: a) an outer imperforate moisture impervious layer defining an interior within: b) a middle moisture absorbent layer within said interior; c) an inner layer apertured by a plurality of perforations substantially uniformly distributed over the whole area circumscribed by a perimeter smaller than the perimeter of said middle absorbent layer located within said interior; d) said outer and inner layers overlying and covering said absorbent layer and having their peripheral edges extending beyond the edges of said absorbent layer, said inner and outer layers being sealed together at their peripheral edges to enclose said absorbent layer, wherein said sealed bag container is formed by attaching the peripheral edges of one or more sheets of said packaging material together, said inner perforated layers being in a superimposed configuration thereby creating a moisture trap space.
Claim 2
Dependent Claim
155 words
A sealed bag container formed from a laminated packaging material able to establish and maintain a dry environment within said container comprising: a) an outer imperforate moisture impervious layer defining an interior within: b) a middle moisture absorbent layer within said interior; c) an inner layer apertured by a plurality of perforations substantially uniformly distributed over the whole area circumscribed by a perimeter smaller than the perimeter of said middle absorbent layer located within said interior; d) said outer and inner layers overlying and covering said absorbent layer and having their peripheral edges extending beyond the edges of said absorbent layer, said inner and outer layers being sealed together at their peripheral edges to enclose said absorbent layer, wherein said sealed bag container is formed by attaching the peripheral edges of one or more sheets of said packaging material together, said inner perforated layers being in a superimposed configuration thereby creating a moisture trap space.
Claim 3
Dependent Claim
77 words
The packaging material according to claim 1, wherein (a) said absorbent layer comprises a plurality of sheets of paper toweling having a thickness within the range of 6 to 18 mils; (b) said inner and said outer moisture impervious layers consist of aluminum foil having a thickness within the range of 1.0 to 4.0 mils; and (c) said inner and said outer moisture impervious layers are attached at their peripheral edges by crimping or are adhesively affixed.
Claim 4
Dependent Claim
76 words
The packaging material according to claim 1, wherein (a) said absorbent layer comprises a plurality of sheets of paper toweling having a thickness within the range of 6 to 18 mils; (b) said inner and outer moisture impervious layers consist of a thermoplastic film having a thickness within the range of 1.0 to 4.0 mils; and (c) said inner and outer moisture impervious layers are attached at their peripheral edges by heat sealing or adhesively affixed.
Claim 5
Dependent Claim
15 words
The packaging material according to claim 3, wherein the said thermoplastic film comprises polyvinylidene chloride.
Claim 6
Dependent Claim
14 words
The packaging material according to claim 3, wherein the said thermoplastic film comprises polyethylene.
Claim 7
Dependent Claim
14 words
The packaging material according to claim 3, wherein the said thermoplastic film comprises polypropylene.
Claim 8
Dependent Claim
20 words
The packaging material according to claim 2 wherein the absorbent layer of paper toweling is impregnated with a desiccant agent.
Claim 9
Dependent Claim
20 words
The packaging material according to claim 3, wherein the absorbent layer of paper toweling is impregnated with a fungicidal agent.
Claim 10
Dependent Claim
54 words
The packaging material according to claim 2 wherein the peripheral edges of the absorbent paper toweling are adhesively attached to form a pouch filled with a granular absorbent agent said pouch being adhesively affixed to the inner surface of said outer layer said outer and inner layers sealably attached to contain said pouch inbetween.
Claim 11
Dependent Claim
15 words
The packaging material according to claim 9, wherein the granular absorbent agent is silica gel.
Claim 12
Dependent Claim
15 words
The packaging material according to claim 9, wherein the granular absorbent agent is activated charcoal.
Claim 13
Dependent Claim
15 words
The laminate in accordance with claim 1 wherein said absorbent material is a cellulose layer.
Claim 14
Dependent Claim
26 words
The laminate in accordance with claim 12 wherein said cellulose layer is absorbent paper which is adhesively secured to one of aid outer and inner layers.
Claim 15
Dependent Claim
17 words
The packaging material according to claim 3 wherein said thermoplastic film comprises a vinylidene chloride-vinyl chloride copolymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |