US PATENT SUBCLASS 162 / 143
.~.~ Animal or proteinaceous

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}
143.~.~ Animal or proteinaceous {1}
144  DF  .~.~.~> Leather

DEFINITION

Classification: 162/143

(under subclass 141) Processes and products in which one of the fibrous components is proteinaceous or are fibers of animal origin.

SEE OR SEARCH THIS CLASS, SUBCLASS:

151, for processes and products in which animal or proteinaceous fibers constitute the sole fibrous material.