US PATENT SUBCLASS 53 / 408
.~.~ Including evacuating
Current as of:
June, 1999
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53 /
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PACKAGE MAKING
396
DF
METHODS
{22}
403
DF
.~ Gas filling and/or evacuating and closing {5}
408
.~.~ Including evacuating
DEFINITION
Classification: 53/408
Including evacuating:
(under subclass 403) Methods of both evacuating and gas
charging receptacles with the step of completing the enclosure.
(1) Note. The evacuation may precede the gas charging or may follow the gas charging.
(2) Note. See (1) Note under subclass 405 for the concept of evacuating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79+, for apparatus to gas charge and/or evacuate a receptacle and complete the enclosure.
405, for the methods limited to evacuating receptacles and completing the enclosure.
