(under subclass 204.5) Structure including means for draining or venting the surface between the opposed barrier faces, e.g., the space within a barrier behind a door or window frame.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302.1, for a drain, vent or vent plug combination of more general application.
SEE OR SEARCH CLASS
49, Movable or Removable Closures,
408, for a drain in the guide or sash of a sliding closure, subclass 471 for a threshold with a drain or vent and subclass 476.1 for a closure seal with a fluid drain or a closure face mounted deflector.
