| Number | Name | Date | Kind |
|---|---|---|---|
| D214132 | Niemoller | May 1969 | |
| D255857 | Zimmerman | Jul 1980 | |
| D256308 | Zimmerman | Aug 1980 | |
| D256646 | Painter et al. | Sep 1980 | |
| D259774 | Criscitiello, Jr. | Jul 1981 | |
| D269323 | Cillario | Jun 1983 | |
| D298000 | Ritman | Oct 1988 | |
| D298304 | Meyer | Nov 1988 | |
| D340882 | Holtkamp, Jr. | Nov 1993 | |
| D352423 | Laib | Nov 1994 | |
| D377580 | Hayes et al. | Jan 1997 | |
| D384862 | Hayes et al. | Oct 1997 | |
| D387986 | Hayes et al. | Dec 1997 | |
| D389061 | Ebrahim et al. | Jan 1998 |
| Number | Date | Country |
|---|---|---|
| 1 071 126 | Feb 1980 | CAX |
| 1 076 044 | Apr 1980 | CAX |
| 1 249 231 | Jan 1989 | CAX |
| 39 43 301 C2 | Dec 1989 | DEX |
| Entry |
|---|
| Plastics Engineering, Oct., 1989, p. 10, illustrating BonFaire Microwaveable Packaging by Placon Corporation. |