US PATENT SUBCLASS 473 / 599
.~.~ For distensible bladder (e.g., casing of football, etc.)

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}
598  DF  .~ Comprising casing or cover having stitched seam or laced closure; blank for such casing or cover (e.g., casing of baseball, etc.) {1}
599.~.~ For distensible bladder (e.g., casing of football, etc.)

DEFINITION

Classification: 473/599

For distensible bladder (e.g., casing of football, etc.):

(under subclass 598) Subject matter wherein the casing or cover having a stitched seam or laced closure is specifically intended to enclose, define the shape of, and limit the size of a centrally disposed member in the from of a flexible and expandable, fluid-retaining bag, sack, etc. (e.g., a balloon, etc.).