US PATENT SUBCLASS 428 / 313.5
.~.~.~ Resin or rubber element

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

221  DF  WEB OR SHEET CONTAINING STRUCTURALLY DEFINED ELEMENT OR COMPONENT {9}
304.4  DF  .~ Composite having voids in a component (e.g., porous, cellular, etc.) {14}
313.3  DF  .~.~ Preformed hollow element-containing {3}
313.5.~.~.~ Resin or rubber element

DEFINITION

Classification: 428/313.5

Resin or rubber element:

(under subclass 313.3) Subject matter wherein the preformed hollow element is composed of resin or rubber, e.g., a hollow resin capsule containing air, etc.

(1) Note. A synthetic resin is the material described in the definition of Class 260, subclass 2.01.