US PATENT SUBCLASS 162 / 12
.~.~ Added to web or article

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}
10  DF  .~ With non-fiber material added to product {2}
12.~.~ Added to web or article

DEFINITION

Classification: 162/12

(under subclass 10) Processes in which the nonfiber material is added to self-sustaining fibrous web or body which has been deposited or formed from a liquid suspension of the fibers.

SEE OR SEARCH THIS CLASS, SUBCLASS:

158+, particularly subclasses 184+, for the application of a nonfiber additive to a formed fibrous web or article not combined with a liberation or purification of the fibers.