(under subclass 106) Subject matter wherein there is associated with the food package as an integral and separate component a material which has heat exchange properties, e.g., fuel, refrigerant, etc.., and which is not primarily intended to become part of the final food product.
(1) Note. Packaged frozen edible materials, per se, are not subject matter for this subclass.
(2) Note. A significant number of the patents herein are drawn to the use of ice as a refrigerant for maintaining foodstuffs on transport.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68, for foodstuffs coated with ice.
SEE OR SEARCH CLASS 53, Package Making, particularly
127, for packaging not specialized to refrigeration and see the reference to Class 62 in that subclass (127).
62, Refrigeration, appropriate subclass, for a refrigerated commodity containing package container or receptacle.
126, Stoves and Furnaces, appropriate subclasses for various receptacles having associated therewith various heaters and particularly
261+, for heaters for warming and keeping warm articles of food.
141, Fluent Material Handling With Receiver or Receiver Coacting Means,
82, for the subject matter of that class combined with cooling not specialized to refrigeration.
215, Bottles and Jars,
12, for a spaced wall or jacketed bowl or jar.
217, Wooden Receptacles, especially
7+, for a compartmented box.
220, Receptacles, 592.01+, for a receptacle having means for facilitating the maintaining its contents above or below ambient temperature.
