US PATENT SUBCLASS 152 / 547
.~.~.~ Bead characterized by the chemical composition and or physical properties of elastomers or the like

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
450  DF  .~ Pneumatic tire or inner tube {23}
539  DF  .~.~ Characterized by the structure of the bead portion of the tire {8}
547.~.~.~ Bead characterized by the chemical composition and or physical properties of elastomers or the like

DEFINITION

Classification: 152/547

Bead characterized by the chemical composition and or physical properties of elastomer or the like:

(under subclass 526) Subject matter wherein the bead portion of the tire comprises material formed by the interaction of two or more chemical substances or a combination of chemical substances exhibiting an essential or distinctive attribute to enhance the general structural characteristics of the tire.

SEE OR SEARCH THIS CLASS, SUBCLASS:

525, for chemical compositions or physical properties of external sidewall materials and subclass 537 for belt or breaker structure or particular chemical composition or physical properties.