US Patent 11834893 Replacement window cladding method and system

A window unit and replacement window cladding method and system which is provided as a single unit to be installed as a complete new window that fits over the head jamb, side jamb and sill of an existing window frame and the old window frame that is cladded with head jamb, side jamb, and sill cover assemblies defining an opening in which one or more sash units is pivotally secured forming a replacement window unit, without any loss of glass size and egress, and without disturbing the building interior, and further including a clip arrangement for securing the head and side jamb assembly to the front surface of the old window frame.