US PATENT SUBCLASS 404 / 32
.~ Rubber or rubber-like


Current as of: June, 1999
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404 /   HD   ROAD STRUCTURE, PROCESS, OR APPARATUS

17  DF  PAVEMENT {9}
32.~ Rubber or rubber-like {1}
33  DF  .~.~> Integral key to base


DEFINITION

Classification: 404/32

(under subclass 17) Pavement structure incorporating rubber, natural or synthetic, or a similar elastic-like material into the wearing surface of the roadway.

(1) Note. While asphalt and similar bituminous pavement are somewhat elastic they are not considered "rubber" or "rubber-like" for this subclass and are classifiable on other characteristics in this class.