US4866232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food package for use in a microwave oven
Assignee: Packaging Corp of America
•
Filing: 1988-04-06
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Granted: 1989-09-12
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Expires: 2008-04-06
Abstract
Abstract A food package is provided wherein the accommodated food product, while remaining in the package, may be heated or cooked in a microwave oven. The food product has at least one predetermined portion thereof which requires enhanced heat while the product is being heated or cooked in the oven. The food package includes a container formed of heat resistant material which is pervious to the microwaves. A surface of the container is provided with an area which is in proximity to the predetermined portion of the food product requiring the enhanced heat. A metallized ink, consisting of metal particles suspended in an ink-like substance, is deposited on the surface area of the container. Thus, when the metallized ink is exposed to the generated microwaves, the required enhanced heat is produced in the vicinity of the surface area.
Inventors
- 👤 James L. Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:52
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B65D81/3453; B65D2581/00; B65D2581/34; B65D2581/3437; B65D2581/3463; B65D2581/3464; B65D2581/3471; B65D2581/3472; B65D2581/3486; B65D2581/3489; B65D2581/3494; Y; Y10; Y10S; Y10S99/00; Y10S99/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
136 words
A food package for heating or cooking a food product accomodated therein in a microwave oven, the accommodated food product having at least one predetermined portion thereof requiring enhanced heat during the heating or cooking of the product, said package comprising a container for the food product formed of a heat resistant material pervious to the microwaves generated within the oven, said container having a surface area of the material in proximity to the predetermined portion of the accommodated food product, said area having printed directly on the material surface a metallized ink, the latter having a predetermined amount of metal particles suspended in an ink-like substance, whereby when said metallized ink is exposed to generated microwaves, the printed surface area produces the requirement enhanced heat for the one predetermined portion of the accommodated food product.
Claim 2
Dependent Claim
136 words
A food package for heating or cooking a food product accomodated therein in a microwave oven, the accommodated food product having at least one predetermined portion thereof requiring enhanced heat during the heating or cooking of the product, said package comprising a container for the food product formed of a heat resistant material pervious to the microwaves generated within the oven, said container having a surface area of the material in proximity to the predetermined portion of the accommodated food product, said area having printed directly on the material surface a metallized ink, the latter having a predetermined amount of metal particles suspended in an ink-like substance, whereby when said metallized ink is exposed to generated microwaves, the printed surface area produces the requirement enhanced heat for the one predetermined portion of the accommodated food product.
Claim 3
Dependent Claim
56 words
The food package of claim 1 wherein the accommodated food product has a plurality of separate predetermined portions requiring enhanced heat during heating or cooking of the food product in the microwave oven, said container having a corresponding number of surface areas on which is directly printed the metallized ink for effecting the required enhanced heat.
Claim 4
Dependent Claim
64 words
The food package of claim 2 wherein the metallized ink printed on certain surface areas of the container has an amount of suspended metal particles which is different from the amount of suspended metal particles in the metallized ink printed on other surface areas thereby effecting enhanced heat of different temperatures when the food product is subjected to the microwaves generated within the oven.
Claim 5
Dependent Claim
33 words
The food package of claim 1 wherein an exposed surface of the printed metallized ink is coated with a material having a non-stick surface characteristic for the purpose of direct food contact protection.
Claim 6
Dependent Claim
20 words
The food package of claim 1 wherein the metallized ink is printed on the container surface in a predetermined pattern.
Claim 7
Dependent Claim
23 words
The food package of claim 1 wherein the metallized ink is printed on a predetermined area of an interior surface of the container.
Claim 8
Dependent Claim
23 words
The food package of claim 1 wherein the metallized ink is printed on a predetermined area of an exterior surface of the container.
Claim 9
Dependent Claim
105 words
A disposable container for accommodating a food product having at least one predetermined portion requiring enhanced heat when the food product is heated or cooked within a microwave oven, said container being formed of a heat resistant material pervious to microwaves, said material having a surface area on which is directly printed a metallized ink, the latter having a predetermined amount of metal particles suspended in an ink-like substance, said surface area adapted to be in proximity to the predetermined portion of the food product and provide the required enhanced heat therefor when the food product is subjected to the microwaves generated within the oven.
Claim 10
Dependent Claim
105 words
A disposable container for accommodating a food product having at least one predetermined portion requiring enhanced heat when the food product is heated or cooked within a microwave oven, said container being formed of a heat resistant material pervious to microwaves, said material having a surface area on which is directly printed a metallized ink, the latter having a predetermined amount of metal particles suspended in an ink-like substance, said surface area adapted to be in proximity to the predetermined portion of the food product and provide the required enhanced heat therefor when the food product is subjected to the microwaves generated within the oven.
Claim 11
Dependent Claim
33 words
The disposable container of claim 8 wherein a plurality of surface areas are provided on which is printed the metallized ink, each surface area adapted to be in proximity to a corresponding predetermined
Claim 12
Dependent Claim
46 words
The disposable container of claim 9 wherein the metallized ink printed on certain surface areas of the container material has an amount of suspended metal particles which is different from the amount of suspended metal particles in the metallized ink printed on the remaining surface areas.
Claim 13
Dependent Claim
38 words
The disposable container of claim 8 wherein the area thereof on which the metallized ink is printed is formed on an interior surface of the container and is adapted to be in contact with the accommodated food product.
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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) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |