A method of making an integrated window sash includes providing a sash frame having a first sheet supporting surface, a second sheet supporting surface, and a base extending from the first sheet supporting surface to toward the second sheet supporting surface; applying a layer of an adhesive sealant...http://www.google.de/patents/US20050028459?utm_source=gb-gplus-sharePatent US20050028459 - Method of making an integrated window sash
