US PATENT SUBCLASS 162 / 145
.~.~ Mineral

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}
145.~.~ Mineral

DEFINITION

Classification: 162/145

(under subclass 141) Processes and products in which one of the fibrous components is mineral in origin.

(1) Note. The mineral fibers most frequently used are asbestos and glass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

152+, for processes and products in which mineral fibers constitute the sole fibrous material.