US PATENT SUBCLASS 53 / 481
.~.~.~ By collapsing mouth portion (e.g., to form single flap)

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

396  DF  METHODS {22}
476  DF  .~ Closing package or filled receptacle {3}
480  DF  .~.~ Closing preformed container deformed by contents {1}
481.~.~.~ By collapsing mouth portion (e.g., to form single flap) {2}
482  DF  .~.~.~.~> Folding or rolling-in
483  DF  .~.~.~.~> Twisting

DEFINITION

Classification: 53/481

By collapsing mouth portion (e.g., to form single flap):

(under subclass 480) Methods for closing the receptacle by bringing together, in close facing relationship, oppositely disposed inner surfaces of cover material extending beyond the contents.