US PATENT SUBCLASS 473 / 601
.~.~ And having intermediate layer between core and cover or having core or cover composed of plural layers

Current as of: June, 1999
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473 /   HD   GAMES USING TANGIBLE PROJECTILE

569  DF  PROJECTILE, PER SE; PART THEREOF OR ACCESSORY THEREFOR {28}
600  DF  .~ Having solid core within outer cover; core or cover therefor (e.g., baseball, etc) {1}
601.~.~ And having intermediate layer between core and cover or having core or cover composed of plural layers {1}
602  DF  .~.~.~> Having plural intermediate layers, at least one being of material diverse from material of core, cover, or another intermediate layer; or having core or cover composed of three or more layers, at least two being of diverse materials

DEFINITION

Classification: 473/601

And having intermediate layer between core and cover or having core or cover composed of plural layers:

(under subclass 600) Subject matter (a) wherein there is a layer or winding of material located between the core and the cover or (b) wherein either the core itself or the cover itself is made up from two or more layers or windings of material.