US PATENT SUBCLASS 204 / 475
.~.~.~ Rubber or vulcanizable gum used to coat or form

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
450  DF  .~ Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere {14}
471  DF  .~.~ Coating or forming of object {13}
475.~.~.~ Rubber or vulcanizable gum used to coat or form {1}
476  DF  .~.~.~.~> Sheet, web, wire, or filament of indeterminant length formed or coated

DEFINITION

Classification: 204/475

Rubber or vulcanizable gum used to coat or form:

(under subclass 471) Process directed to the coating or formation of objects with (a) a natural or synthetic elastic polymer commonly known as rubber (e.g., caoutchouc, neoprene, etc.) or (b) a gum which may be vulcanized (cross-linked) (e.g., by reaction with sulphur at an elevated temperature, etc.) from a tacky, plastic mixture to an elastic or rigid product.