US PATENT SUBCLASS 156 / 78
.~.~.~ Foaming

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

1  DF  METHODS {7}
60  DF  .~ Surface bonding and/or assembly therefor {93}
77  DF  .~.~ With pore forming in situ to form cellular lamina {1}
78.~.~.~ Foaming {1}
79  DF  .~.~.~.~> Subsequent to assembly of laminae

DEFINITION

Classification: 156/78

(under subclass 77) Processes in which the step of forming the pores is effected by introducing a gas under pressure to the interior of at least one lamina or by generating a gas in-situ within such lamina.

SEE OR SEARCH CLASS

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,

10+, for foam colloid systems or agents for such systems or making or stabilizing such systems or agents, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.