US PATENT SUBCLASS 454 / 35
.~.~ Spaced cap

Current as of: June, 1999
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454 /   HD   VENTILATION

1  DF  CHIMNEY OR STACK {6}
3  DF  .~ Chimneytop or stacktop structure (e.g., cowl) {12}
35.~.~ Spaced cap {2}
36  DF  .~.~.~> And spaced shield {1}
38  DF  .~.~.~> And skirt deflector extending outwardly from chimney or stack

DEFINITION

Classification: 454/35

Spaced cap:

(under subclass 3) Subject matter comprising a cover above and at a distance from the uppermost portion of the vertical pipe or conduit section.