US PATENT SUBCLASS 53 / 459
.~.~.~ Bag, tube, center-folded web

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


53 /   HD   PACKAGE MAKING

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

DEFINITION

Classification: 53/459

Bag, tube, center-folded web:

(under subclass 457) Methods in which the cover comprises a flexible wall receptacle which may be made of thermoplastic material or paper.

(1) Note. The collapsed receptacle may comprise a bag, a tube, or merely a web pre-folded upon itself.

SEE OR SEARCH THIS CLASS, SUBCLASS:

469, for methods of filling and closing flexible receptacles.

567, 568, 570 through 573, for opening and filling flexible receptacles.