US PATENT SUBCLASS 162 / 142
.~.~ Undigested cellulosic fiber
Current as of:
June, 1999
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162 /
HD
PAPER MAKING AND FIBER LIBERATION
100
DF
PROCESSES AND PRODUCTS
{31}
141
DF
.~ Plural fiber containing {7}
142
.~.~ Undigested cellulosic fiber
DEFINITION
Classification: 162/142
(under subclass 141) Processes and products in which one of the fibrous components is undigested cellulosic fiber, such as groundwood or sawdust.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71, for processes involving the chemical liberation or purification of groundwood or sawdust.
150, for processes and products in which undigested cellulosic fibers constitute the sole fibrous component.