US4442158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food package of plastic laminate
Assignee: CLODSLEY Co 470 W NORTHLAND ROAD CINCINNATI OH 45240 A CORP OF OH
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Filing: 1981-06-01
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Granted: 1984-04-10
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Expires: 2001-06-01
Abstract
Abstract The present invention relates to a food package and more particularly to an improved snack food package. The package comprises an outer layer of polypropylene, a polyvinylidene chloride middle layer and an inner ionomer resin layer. The invention also comprises an unique method for making the snack food package which includes a plurality of steps especially adapted to provide the required lamination between the layers.
Inventors
- 👤 James A. Distler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:22
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/304; B32B2323/00; B32B2323/10; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1341; Y10T428/24; Y10T428/24802; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
41 words
A plastic laminate especially adapted for use as a food package, said laminate comprising in sequential layers from exterior to interior, a polypropylene layer, a polyvinylidene chloride polymer layer, and an ionomer resin layer as the inside layer of the package.
Claim 2
Dependent Claim
41 words
A plastic laminate especially adapted for use as a food package, said laminate comprising in sequential layers from exterior to interior, a polypropylene layer, a polyvinylidene chloride polymer layer, and an ionomer resin layer as the inside layer of the package.
Claim 3
Dependent Claim
17 words
The laminate of claim 1 wherein the polypropylene and polyvinylidene chloride layer have been corona discharge treated.
Claim 4
Dependent Claim
21 words
The laminate of claim 2 wherein the polyvinylidene chloride layer is a polyvinylidene chloride-acrylate polymer and is applied in emulsion form.
Claim 5
Dependent Claim
12 words
The laminate of claim 3 wherein the polypropylene has been reverse printed.
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) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |