US PATENT SUBCLASS 162 / 72
.~.~ Organic

Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

1  DF  PROCESSES OF CHEMICAL LIBERATION, RECOVERY OR PURIFICATION OF NATURAL CELLULOSE OR FIBROUS MATERIAL {33}
70  DF  .~ Treatment with particular chemical {9}
72.~.~ Organic {5}
73  DF  .~.~.~> With inorganic chlorine containing material
74  DF  .~.~.~> Chlorine containing
75  DF  .~.~.~> Fat, fatty oil or higher fatty acid
76  DF  .~.~.~> Acids, salts or esters
77  DF  .~.~.~> Alcohols or phenols

DEFINITION

Classification: 162/72

(under subclass 70) Processes in which an organic compound is used as the fiber treating agent.

(1) Note. Attention is directed to the definitions of Class 260, Chemistry of Carbon Compounds, for the scope of the term "organic compound" and of the various types of organic compound provided for in the subclasses indented hereunder.