|
| US4704808 | 25 Sep 1986 | 10 Nov 1987 | Highland Import Corporation | Shoe having a rigid back part and flexible forepart |
| US4852275 | 9 Nov 1987 | 1 Aug 1989 | Highland Import Corporation | Shoe having a rigid back part |
| US6018891 | 29 Sep 1998 | 1 Feb 2000 | The Rockport Company, Inc. | Shoe construction |
