| Number | Name | Date | Kind |
|---|---|---|---|
| 2219975 | Bentz | Oct 1940 | A |
| 2340545 | Marsh | Feb 1944 | A |
| 3193848 | Levy | Jul 1965 | A |
| 4987619 | Smith | Jan 1991 | A |
| 5090068 | Zellner | Feb 1992 | A |
| 5542218 | Rompel | Aug 1996 | A |
| 5732421 | Scherberger | Mar 1998 | A |
| 6301725 | Harvev | Oct 2001 | B1 |
| Entry |
|---|
| An Eljer ad entitled “Rutger Shower”, undated, admitted prior art. |
| A Kohler Co. ad entitled “Freewill”, undated, admitted prior art. |