US PATENT SUBCLASS 4 / 403
.~.~.~.~ Hollow

Current as of: June, 1999
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4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

300  DF  FLUSH CLOSET {22}
353  DF  .~ Tank only {9}
378  DF  .~.~ With outlet valve {6}
395  DF  .~.~.~ Float type {4}
403.~.~.~.~ Hollow {1}
404  DF  .~.~.~.~.~> Open at bottom

DEFINITION

Classification: 4/403

Hollow:

(under subclass 395) Subject matter wherein the valve body is formed with a cavity therein.

(1) Note. A cavity intended solely to receive solid material, including other mechanical elements is not, of itself, sufficient for placement in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

397, for a similar device in which the valve also has a seating guide.