US PATENT SUBCLASS 252 / 610
.~ Dispersion or colloidal system


Current as of: June, 1999
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252 /   HD   COMPOSITIONS

601  DF  FIRE RETARDING {9}
610.~ Dispersion or colloidal system {1}
611  DF  .~.~> For dispersion or collodial system


DEFINITION

Classification: 252/610

For dispersion or collodial system:

(under subclass 601) Compositions comprising systems of minute particles distinct and separate from one another and suspended in a medium.

SEE OR SEARCH CLASS

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting, appropriate subclasses for subject matter relating to: colloid systems (such as sols*, emulsions, dispersions, foams, aerosols, smokes, gels, or pastes) or wetting agents (such as leveling, penetrating, or spreading); subcombination compositions of colloid systems containing at least an agent specialized and designed for or peculiar to use in making or stabilizing colloid systems; compositions and subcombination compositions specialized and designed for or peculiar to use in breaking (resolving) or inhibiting colloid systems; processes of making the compositions or systems of the class; processes of breaking (resolving) or inhibiting colloid systems; in each instance, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.