| 3885257 | Pressure controlled resilient supporting structure | May, 1975 | Rogers | 5/345 |
| 3940811 | Lightweight construction materials and articles made thereof | March, 1976 | Tomikawa et al. | 5/361 |
| 4070719 | Cushioning element | January, 1978 | Morgan | 5/355 |
| 4276666 | Mattress | July, 1981 | Yamada | 5/481 |
| 4320543 | Medical pillow | March, 1982 | Dixon | 5/434 |
| 4383342 | Mattress for a sitting or lying person | May, 1983 | Forster | 5/432 |
| 4399574 | Novel mattress pad | August, 1983 | Shuman | 5/417 |
| 4603445 | Support pad and method of manufacture | August, 1986 | Spann | 5/481 |
| 4605582 | Body support pad | August, 1986 | Sias et al. | D6/606 |
| 4686724 | Support pad for nonambulatory persons | August, 1987 | Bedford | 5/481 |
| 4686725 | Mattress cushion with securement feature | August, 1987 | Mitchell | 5/481 |
| CA1179789 | December, 1984 | 360/1 | ||
| FR569690 | December, 1957 | |||
| IT526407 | December, 1954 | |||
| CH571845 | January, 1976 | |||
| GB1559851 | January, 1980 | 27/14 | ||
| GB2025234 | January, 1980 | |||
| GB2084867 | April, 1982 |
FIG. 1 is a top perspective view of mattress pad material showing my new design, the bottom being plain and unornamented and the ribbing being understood to extend uniformly through its indeterminate length which is shown broken-away; and
FIG. 2 is an enlarged fragmentary side elevational view thereof.