| Number | Name | Date | Kind |
|---|---|---|---|
| 2999498 | Matheson | Sep 1961 | A |
| D271246 | Matheson et al. | Nov 1983 | S |
| 4414973 | Matheson et al. | Nov 1983 | A |
| 4549543 | Moon | Oct 1985 | A |
| 4630604 | Montesi | Dec 1986 | A |
| 4850346 | Michel et al. | Jul 1989 | A |
| 4934362 | Braun | Jun 1990 | A |
| 4958633 | Angell | Sep 1990 | A |
| 4960121 | Nelson et al. | Oct 1990 | A |
| 4974586 | Wandel et al. | Dec 1990 | A |
| 4981134 | Courtney | Jan 1991 | A |
| 5062421 | Burns et al. | Nov 1991 | A |
| 5325892 | Japuntich et al. | Jul 1994 | A |
| 5592937 | Freund | Jan 1997 | A |
| D382341 | Freund | Aug 1997 | S |
| D413166 | Snow et al. | Aug 1999 | S |
| 6047698 | Magidson et al. | Apr 2000 | A |
| 6062221 | Brostrom et al. | May 2000 | A |
| 6345620 | Salapow et al. | Feb 2002 | B2 |
| Entry |
|---|
| Product literature for 3M™ Half and Full Facepiece Respirators (70-0710-9082-6), Jan. 2002. |