US PATENT SUBCLASS 220 / 592.27
.~.~ Vacuum insulation

Current as of: June, 1999
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220 /   HD   RECEPTACLES

592.01  DF  RECEPTACLE HAVING MEANS TO FACILITATE MAINTAINING CONTENTS ABOVE OR BELOW AMBIENT TEMPERATURE (E.G., COMPARTMENT FOR HOLDING A HEAT EXCHANGE MEDIUM) {5}
592.2  DF  .~ Thermally insulated receptacle {6}
592.27.~.~ Vacuum insulation

DEFINITION

Classification: 220/592.27

Vacuum insulation:

(under subclass 592.2) Subject matter wherein the means for impeding the flow of heat includes an empty cavity from which the air has been removed.

SEE OR SEARCH CLASS

215, Bottles and Jars,

12.1, for vacuum bottles and jars for beverages.