2198724

Information

• Patent Grant
• 2198724

• References
• Source

• Patent Number

  2,198,724

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1940
  84 years ago

• CPC

  • A47C27/053 - with only one layer of foamed material
  • A47C27/22 - with both fibrous and foamed material inlays
  • B68G5/02 - of cellular material
  • B68G11/03 - with stitched or bonded fibre webs
  • Y10T428/12361 - having aperture or cut
  • Y10T428/12451 - Macroscopically anomalous interface between layers
  • Y10T428/24331 - including nonapertured component
  • Y10T428/24339 - Keyed
  • Y10T428/24996 - With internal element bridging layers, nonplanar interface between layers, or intermediate layer of commingled adjacent foam layers

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 521 - Synthetic resins or natural rubbers