The Weathervane Windows, Inc of Brigton, MI and the Weathervane Window Company of Kirkland WA. were at one time connected. At one time the Kirkland company bought parts from the Brighton company because they shared common window designs, Double hungs in particular. The founder of the Brighton Weathervane started a loose franchise type of relationship with the Kirkland people. Naturally when the Brighton company folded in June of 1999 the Kirkland company became independant. This is my understanding of the situation as a nearly 15 year engineering employee of the Brighton Weathervane Window, Inc.