US PATENT SUBCLASS 264 / 113
.~.~ Plural layers formed by uniting randomly associated particles

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

109  DF  FORMING ARTICLES BY UNITING RANDOMLY ASSOCIATED PARTICLES {12}
112  DF  .~ Stratified or layered articles {1}
113.~.~ Plural layers formed by uniting randomly associated particles

DEFINITION

Classification: 264/113

(under subclass 112) Processes which includes forming at least two distinct layers or strata of the formed article by a particle uniting operation.

(1) Note. A process of simultaneously forming two layers of particulate material and uniting them at their source of formation is within the scope of this subclass.