US PATENT SUBCLASS 162 / 10
.~ With non-fiber material added to product

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.~ With non-fiber material added to product {2}
11  DF  .~.~> Fiber supplied constituent
12  DF  .~.~> Added to web or article

DEFINITION

Classification: 162/10

(under subclass 1) Processes combined with the addition or retention of a nonfibrous ingredient to or in the feltable fibrous product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

158+, for processes involving adding or retaining one or more nonfibrous ingredients to or in the fibrous product not combined with the digestion, liberation or purification of the fibers.