US PATENT SUBCLASS 404 / 27
.~ Including bed

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

17  DF  PAVEMENT {9}
27.~ Including bed {2}
28  DF  .~.~> Having preformed element layer {2}
31  DF  .~.~> Plural layers

DEFINITION

Classification: 404/27

(under subclass 17) Pavement structure having specifics or tails of the substructure supporting said pavement.

(1) Note. Mere nominal inclusion of a supporting substructure-e.g., "roadbed", "base", or "foundation" will

not result in classification in this subclass. See subclass 71 for bed structure, per se.