Patent 7203975 was granted and assigned to Kohler Co. on April, 2007 by the United States Patent and Trademark Office.
A hinge assembly is provided for connecting a toilet seat and cover to a rearward extension behind a toilet bowl. A base member is permanently affixed to the extension. A hinge support member is rotatably linked to the base member in bayonet connection fashion. The hinge support, seat and cover can be removed from the, leaving only the base attached to the extension.