Patent ID: 7082727

Claim:
A window comprising: at least one frame, a fixed glazing and a movable glazing, the movable glazing being movable relative to the fixed glazing, an exterior sash frame and an interior sash frame supported by the at least one frame, the movable glazing being supported by at least the interior sash frame, wherein the exterior sash frame comprises first pivot means for pivotal engagement with the interior sash frame, and first snap-fit engagement means for snap-fit engagement with the interior sash frame, so that said first pivot means and first snap-fit engagement means are for permitting the exterior sash frame to be attached and/or removed from the interior sash frame by way of pivoting and snap-fit engagement and/or removal, a glazing mask pivotally attached to the at least one frame proximate the fixed glazing, wherein the glazing mask includes second pivot means and second snap-fit means for permitting the glazing mask to be attached and/or removed from the at least one frame by way of pivoting and snap-fit engagement and/or removal, means for permitting the combination of the exterior sash frame and interior sash frame, in an engaged state, to be pivotally connected to the at least one frame, so as to permit the combination of the exterior and interior sash frames to be attached and/or removed from the at least one frame by way of pivoting, and a mobile sash mask including third pivot means for allowing the mobile sash mask to be pivotally inserted and attached over at least part of the combination of the exterior and interior sash frames.