US PATENT SUBCLASS 53 / 428
.~ With contents treating

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

396  DF  METHODS {22}
428.~ With contents treating {7}
429  DF  .~.~> Folding
430  DF  .~.~> Winding
431  DF  .~.~> Liquid treating
432  DF  .~.~> Vacuum or gas treating {2}
435  DF  .~.~> Cutting
436  DF  .~.~> Compacting or stretching {2}
440  DF  .~.~> Heating or cooling

DEFINITION

Classification: 53/428

With contents treating:

(under subclass 396) Methods for subjecting the contents, either before, during, or after packaging, to an agency (a) which alters a physical or chemical characteristic of the contents or (b) which prevents constituents of the ambient atmosphere or another ambient condition from altering a physical or chemical characteristic of the contents material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+, for corresponding apparatus.

SEE OR SEARCH CLASS

141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

11+, for processes of filling receivers with fluent material which include treatment of the material, and see the search note to subclass 111 for a statement as to the type of treatment applicable to Class 141.

426, Food or Edible Material: Processes, Compositions, and Products, appropriate subclasses for methods of packaging food combined with a food working step.