Patent US2253490A successfully refreshed from Google Patents.
Patent US4927647A successfully refreshed from Google Patents.
US4927647A
Expired / Lapsed
US
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Anti-stick package for hygroscopic foods
Assignee: RJ Reynolds Tobacco Co
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Filing: 1988-11-23
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Granted: 1990-05-22
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Expires: 2008-11-23
Abstract
Abstract A flexible laminate film for packaging hygroscopic products, including foods, is disclosed in which the packaged contents do not adhere or stick to the inner surface of the package. The inner layer of the package laminate provides the anti-stick characteristic of the package and comprises a polystyrene foam.
Inventors
- 👤 Jennifer A. Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:32
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; A; A23; A23B; A23B2/00; A23B2/70; A23B2/704; A23B2/708; A23G; A23G3/00; A23G3/34; B32B27/00; B32B27/32; B32B29/00; B32B29/002; B32B29/007; B65; B65D; B65D75/00; B65D75/26; B32B2255/00; B32B2255/20; B32B2255/205; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0228; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2317/00; B32B2317/12; B32B2323/00; B32B2323/04; B32B2439/00; B32B2439/70; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249982
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
53 words
A packaged dried fruit candy hygroscopic food stuff comprising a hygroscopic foodstuff contained in a flexible laminated package , said flexible laminated package comprising an inner layer formed of a polystyrene foam film having anti-stick characteristics whereby when placed in said package, said hygroscopic foodstuffs will not adhere to said polystyrene inner layer.
Claim 2
Dependent Claim
53 words
A packaged dried fruit candy hygroscopic food stuff comprising a hygroscopic foodstuff contained in a flexible laminated package , said flexible laminated package comprising an inner layer formed of a polystyrene foam film having anti-stick characteristics whereby when placed in said package, said hygroscopic foodstuffs will not adhere to said polystyrene inner layer.
Claim 3
Dependent Claim
22 words
The packaged foodstuff of claim 1 further including a foil layer adhered to said polystyrene foam film layer to inhibit moisture penetration.
Claim 4
Dependent Claim
21 words
The packaged foodstuff of claim 2 further including an outer layer adhered to said moisture inhibiting foil layer for receiving printing.
Claim 5
Dependent Claim
13 words
The packaged foodstuff of claim 3 wherein said foil layer is metallized film.
Claim 6
Dependent Claim
19 words
The packaged foodstuff of claim 4 wherein said metallized film is one of metallized paper and metallized polyethylene film.
Claim 7
Dependent Claim
32 words
The packaged foodstuff of claim 3 wherein the outer layer comprises a material selected from the group consisting of paper, polyolefins, vinyls, ionomers, styrene polymers and copolymers, polyamide, polyester and combinations thereof.
Claim 8
Dependent Claim
19 words
The packaged foodstuff of claim 1 wherein the polystyrene foam layer is partially coated with a cold seal adhesive.
Claim 9
Dependent Claim
19 words
The packaged foodstuff of claim 1 wherein the polystyrene foam layer is partially coated with a heat seal adhesive.
Claim 10
Dependent Claim
23 words
The packaged foodstuff of claim 1 wherein the polystyrene foam film has a thickness of from about 2 mils to about 25 mils.
Claim 11
Dependent Claim
20 words
The packaged foodstuff of claim 1 wherein the polystyrene foam film has a thickness of from 5 to 10 mils.
References Cited (Backward Citations)
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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) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |