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Class Information
Number: 297/452.37
Name: Chairs and seats > Bottom or back > Contoured back > Having varying density foam
Description: Device in which the contoured back comprises two layers or areas made of different types of foam material; i.e., foams having different degrees of hardness.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7588296 |
Seat cushion pad for vehicle, seat back pad for vehicle, and seat for vehicle |
Sep. 15, 2009 |
| 7585030 |
Environmentally friendly layered seating assembly |
Sep. 8, 2009 |
| 7553288 |
Sound and vibration transmission pad and system |
Jun. 30, 2009 |
| 7090292 |
Energy absorbing support for vehicular passengers |
Aug. 15, 2006 |
| 6733083 |
Seat, especially for a vehicle |
May. 11, 2004 |
| 6447058 |
Seat means for preventing shock |
Sep. 10, 2002 |
| 5855415 |
Portable seat cushion having pressure-reducing properties |
Jan. 5, 1999 |
| 5704691 |
Padded chair construction |
Jan. 6, 1998 |
| 5544942 |
Motor vehicle seat padding |
Aug. 13, 1996 |
| 5518297 |
Seat-type bed for nursing instrument |
May. 21, 1996 |
| 5452940 |
Pressure relief back cushion |
Sep. 26, 1995 |
| 5385385 |
Child's automotive safety booster seat with a view |
Jan. 31, 1995 |
| 5085488 |
Seat backrest with a layered structure |
Feb. 4, 1992 |
| 5062677 |
Wheelchair back system |
Nov. 5, 1991 |
| 5039158 |
Seating cushion |
Aug. 13, 1991 |
| 4889387 |
Chair member |
Dec. 26, 1989 |
| 4835801 |
Back support cushion |
Jun. 6, 1989 |
| 4696516 |
Contoured aircraft and car seat |
Sep. 29, 1987 |
| 4522447 |
Foam seat and back cushions |
Jun. 11, 1985 |
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