| D342411 | Seat cushion | December, 1993 | Graebe | D6/601 |
| 2800165 | Reinforced foam rubber cushioning material | July, 1957 | Talalay et al. | |
| 2970638 | Seat and backrest construction | February, 1961 | Halter | |
| 3376070 | Contoured seat cushion | April, 1968 | Johnson | |
| 4234228 | Modular articulating seating system for the handicapped | November, 1980 | Flamm | |
| 4753480 | Pad assembly for wheelchairs | June, 1988 | Morell | |
| 4796948 | Patient support system for wheelchairs and the like | January, 1989 | Paul et al. | |
| 4824169 | Orthopedic seat | April, 1989 | Jarrell | |
| 4893873 | Seat cushion assembly | January, 1990 | Iwamoto et al. | |
| 4953913 | Contoured seat base | September, 1990 | Graebe | |
| 5018790 | Customized seat cushion | May, 1991 | Jay | |
| 5163737 | Cushion | November, 1992 | Navach et al. | |
| 5317773 | Waterblown foam base | June, 1994 | Graebe | |
| 5352023 | Seating and back systems for a wheelchair | October, 1994 | Jay et al. |
FIG. 1 is a right perspective view of the foam base of this invention;
FIG. 2 is a top plan view of the base shown in FIG. 1;
FIG. 3 is a bottom view of thereof;
FIG. 4 is a back elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a left side elevational view thereof; and,
FIG. 7 is a right side elevational view thereof.