Patent US4840271A successfully refreshed from Google Patents.
US4840271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved thermoplastic skin packing means
Assignee: SEAWELL NORTH AMERICA Inc A CORP OF
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Filing: 1986-11-07
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Granted: 1989-06-20
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Expires: 2006-11-07
Abstract
Abstract A package containing skin-packed perishable goods including a base, goods on the base, a flexible plastic web over the goods and the base to, at least partially, skin pack the goods, and a lid for the base. A gas to permeate the web and enhance preservation of the goods is contained in the space between the lid and the skin packed goods.
Inventors
- 👤 Anthony J. M. Garwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:56
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/18; B65D81/20; B65D81/2069; B65D81/2076; B65B; B65B11/00; B65B11/50; B65B31/00; B65D2565/00; B65D2565/38; B65D2565/381; B65D2565/387; B65D2565/388; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/80
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
102 words
An improved package for perishable goods comprising: a base over which said goods are placed; a gas permeable flexible web covering and at least partially skin packing said goods and holding said goods relative to said base, said web being sealed to said base; a lid positioned over the top of said base and sealed to said base over said flexible web; a space above said goods formed between said flexible web and said lid; and a gas retained in said space, said gas selected for enhancing preservation of the packaged goods by permeation of said gas through said gas permeable web.
Claim 2
Dependent Claim
102 words
An improved package for perishable goods comprising: a base over which said goods are placed; a gas permeable flexible web covering and at least partially skin packing said goods and holding said goods relative to said base, said web being sealed to said base; a lid positioned over the top of said base and sealed to said base over said flexible web; a space above said goods formed between said flexible web and said lid; and a gas retained in said space, said gas selected for enhancing preservation of the packaged goods by permeation of said gas through said gas permeable web.
Claim 3
Dependent Claim
18 words
The improved package of claim 1 in which the base is made of a gas permeable plastic material.
Claim 4
Dependent Claim
21 words
The improved package of claim 1 in which the base is formed of a material that creates a partial gas barrier.
Claim 5
Dependent Claim
18 words
The improved package of claim 1 in which the base is formed of a high gas barrier material.
Claim 6
Dependent Claim
15 words
The improved package of claim 1 in which said base is about 450 microns thick.
Claim 7
Dependent Claim
15 words
The improved package of claim 1 in which said web forms a partial gas barrier.
Claim 8
Dependent Claim
15 words
The improved package of claim 1 in which said web is from 50-100 microns thick.
Claim 9
Dependent Claim
13 words
The improved package of claim 1 in which said lid is gas permeable.
Claim 10
Dependent Claim
16 words
The improved package of claim 1 in which said lid forms a very high gas barrier.
Claim 11
Dependent Claim
15 words
The improved package of claim 1 in which said lid forms a partial gas barrier.
Claim 12
Dependent Claim
15 words
The improved package of claim 1 in which said lid is from 80-120 microns thick.
Claim 13
Dependent Claim
39 words
The improved package of claim 1 in which the space between said lid and said web contains an amount of gas needed to preserve the goods for an extended period, the nature of the goods determining the gas selected.
Claim 14
Dependent Claim
28 words
The improved package of claim 12 in which said gas is oxygen, nitrogen, carbon dioxide, atmospheric air or another gas, or combinations thereof, selected for its preservation characteristics.
Claim 15
Dependent Claim
28 words
The improved package of claim 1 in which said lid is affixed to said base so that it may be removed from the package separately from said web.
Claim 16
Dependent Claim
21 words
The improved package of claim 1 in which said lid and said web are peelable as a unit from said base.
Claim 17
Dependent Claim
29 words
The improved package of claim 1 in which said base is made of P.V.C., said flexible web is made of plasticized P.V.C. and said lid is made of P.V.C.
Claim 18
Dependent Claim
30 words
The improved package of claim 1 in which said base is made of a P.V.C./E.V.A. laminate, said web is made of plasticized P.V.C. and said lid is made of P.V.C.
Claim 19
Dependent Claim
31 words
The improved package as in claim 1, in which said base is made of P.V.C., said web is made of plasticized P.V.C. and said lid is made of a P.V.C./E.V.A. laminate.
Claim 20
Dependent Claim
35 words
The improved package of claim 1 including a further gas permeable flexible web sealed relative to said base, said further web underlying and, in cooperation with said first web, substantially completely skin packing said goods.
Claim 21
Dependent Claim
39 words
The improved package of claim 19 in which said further web is dimensioned so as to form a space between it and the base, said space being filled with a gas selected for enhancing preservation of the packed goods.
Claim 22
Dependent Claim
28 words
The improved package of claim 19 in which the gas between said further web and said base is different from that between said first web and said lid.
Claim 23
Dependent Claim
20 words
The improved package of claims 1 or 19 in which said lid provides a containing space for an eating implement.
Claim 24
Dependent Claim
23 words
The improved package of claims 1 or 19 further including an oven-microwave usable tray positioned between said base and said skin packed goods.
Claim 25
Dependent Claim
37 words
The improved package of claim 19 in which said base contains a plurality of skin packed goods, said goods being arranged on said base one on top of the other, said goods each being individually skin packed.
Claim 26
Dependent Claim
44 words
The improved package of claim 19 in which said bottommost skin packed goods are so positioned as to provide a gas retaining space between said base and said goods, said space being filled with a gas selected to enhance the preservation of the goods.
Claim 27
Dependent Claim
22 words
The improved package of claim 25 in which said gas may be oxygen, nitrogen, carbon dioxide, atmospheric air or another suitable gas.
Claim 28
Dependent Claim
27 words
The improved package of claim 1 in which said web is urged into skin packing conformation with said goods by reducing the gas pressure below said web.
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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) | 1992-06-19 | 1992-12-19 | 1993-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-19 | 1996-12-19 | 1997-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-19 | 2000-12-19 | 2001-06-20 | $7700.00 | Window Closed / Lapsed |