US PATENT SUBCLASS 454 / 214
.~ Having air passage between sill and bottom of sash

Current as of: June, 1999
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454 /   HD   VENTILATION

196  DF  MEANS COMBINED WITH WINDOW {12}
214.~ Having air passage between sill and bottom of sash {5}
215  DF  .~.~> Including wall sloping downward from window
216  DF  .~.~> Including wall for upwardly deflecting inlet air {3}
221  DF  .~.~> Including louvers
222  DF  .~.~> Including readily moveable air regulating means
223  DF  .~.~> With means for liquid contact

DEFINITION

Classification: 454/214

Having air passage between sill and bottom of sash:

(under subclass 196) Subject matter comprising an air path located between a base of the window (i.e., a sill) and a base of a frame which directly attaches to and holds a

lowermost light admitting panel of the window (i.e., a sash).

(1) Note. A window frame which supports the sash is not considered to be part of the sash.

SEE OR SEARCH THIS CLASS, SUBCLASS:

200+, for a window combined with an air pump located at various positions including at the bottom of the window between the window sash and window sill.

213, for a window having an air passage at a top portion of a window and also between a window sill and a sash bottom.

SEE OR SEARCH CLASS

49, Movable or Removable Closures, particularly 50+, for a safety guard insertable between a window sash and a window sill.

160, Flexible or Portable Closure, Partition, or Panel, appropriate subclasses for a screen inserted between the window sash and window sill.