US PATENT SUBCLASS 252 / 364
SOLVENTS
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 252/364
(under the class definition) Compositions specialized and designed for, or peculiar to use as solvents.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69, for solvents for volatile refrigerants.
SEE OR SEARCH CLASS
106, Compositions: Coating or Plastic,
311, for vehicles or solvents for use in the production of coating or plastic compositions. 510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions, appropriate subclasses, particularly
118, 177+, 201+, and 405+, for cleaning compositions which include solvents.
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; including those instances when a composition would otherwise be proper for this subclass (364).
