US PATENT SUBCLASS 162 / 171
.~.~ Bitumen


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



162 /   HD   PAPER MAKING AND FIBER LIBERATION

100  DF  PROCESSES AND PRODUCTS {31}
158  DF  .~ Non-fiber additive {16}
171.~.~ Bitumen


DEFINITION

Classification: 162/171

(under subclass 158) Processes and products which include a bituminous material such as asphalt, tar, tarry residues, etc.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastic, particularly

164.12, 164.6, 166.7, 169.54, 170.56, and 196.1 for compositions comprising cellulose and bituminous material which are not deposited from a liquid suspension.