US PATENT SUBCLASS 510 / 455
.~.~ Gas-filled void containing (e.g., foamed particle,hollow pellet, etc.)

Current as of: June, 1999
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510 /   HD   CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS

108  DF  CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.) {21}
445  DF  .~ Solid, shaped macroscopic article or structure (e.g., pellet, film, etc.) {5}
455.~.~ Gas-filled void containing (e.g., foamed particle,hollow pellet, etc.)

DEFINITION

Classification: 510/455

Gas-filled void containing (e.g., foamed particle, hollow pellet, etc.):

(under subclass 445) Structures which are macroscopic, solid, and contain gas-filled voids which may be open or closed.