Patent Grant
D414544
| Number | Name | Date | Kind |
|---|---|---|---|
| D326706 | Karlsson | Jun 1992 | |
| D363760 | Morem et al. | Oct 1995 | |
| D374476 | Page et al. | Oct 1996 | |
| D401306 | Ward et al. | Nov 1998 | |
| D402735 | Kott | Dec 1998 | |
| 3469707 | Humbert, Jr. et al. | Sep 1969 | |
| 4801383 | Hoffmann et al. | Jan 1989 | |
| 5082476 | Kahlbaugh et al. | Jan 1992 | |
| 5443721 | Kelada et al. | Aug 1995 | |
| 5613992 | Engel | Mar 1997 |
| Entry |
|---|
| Exhibit A, Photographs of a prior art filter element (2 pages; 4 photographs). |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 076524 | Sep 1997 |
