04355721 is referenced by 71 patents and cites 110 patents.

This application is concerned with food packages made from sheet or film into the forms of heat sealable pouches, bags, or covered trays in which the food product is placed, the package sealed, and the packaged food processed in a pressure cooker or retort to permit the packaged food to be stored without refrigeration. Certain food products can be rendered commercially sterile by hot filling the package at temperatures below boiling to permit storage for long periods without refrigeration. While still in the sealed package of the present invention, the consumer can heat or cook the food by immersion in boiling water or by microwave oven. The sheet or film is a multilayer construction wherein each layer performs specific functions and the choice of materials for the layers is interdependent to provide a film structure having all desired properties at the least cost.

Title
Package for food products
Application Number
38187
Publication Number
4355721
Application Date
July 30, 1980
Publication Date
October 26, 1982
Inventor
John P Adams
Appleton
WI, US
Matthew S Koschak
Appleton
WI, US
Jack E Knott II
Menasha
WI, US
Agent
Stanley L Amberg
Stuart S Bowie
Assignee
American Can Company
CT, US
IPC
B32B 9/04
B65D 81/18
B65D 65/40
B65D 85/72
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