US PATENT SUBCLASS 53 / 400
.~ With adsorption or absorption of contents

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

396  DF  METHODS {22}
400.~ With adsorption or absorption of contents

DEFINITION

Classification: 53/400

With adsorption or absorption of contents:

(under subclass 396) Methods in which the contents is adsorbed or absorbed by the cover.

(1) Note. An absorbent or adsorbent material which remains associated with the cover upon discharge of the contents is considered to be part of the cover.

(2) Note. The patents in this subclass relate mainly to the storage of acetylene gas.