US PATENT SUBCLASS 53 / 457
.~.~ Opening or setting up collapsed, preformed receptacle


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

396  DF  METHODS {22}
452  DF  .~ Forming or partial forming a receptacle and subsequent filling {4}
457.~.~ Opening or setting up collapsed, preformed receptacle {2}
458  DF  .~.~.~> Box, carton
459  DF  .~.~.~> Bag, tube, center-folded web


DEFINITION

Classification: 53/457

Opening or setting up collapsed, preformed receptacle:

(under subclass 452) Methods for erecting or expanding covers which are at least partially fabricated but collapsed, usually for storage purposes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

492, for methods of opening, per se.

564+, for corresponding apparatus.