2821243

Information

• Patent Grant
• 2821243

• References
• Source

• Patent Number

  2,821,243

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1958
  67 years ago

• CPC

  • B60N2/7052 - Springs using a combination of metal and rubber
  • A47C7/34 - with springs in compression
  • B29C44/58 - Moulds
  • B29C33/0033 - constructed for making articles provided with holes
  • B29C33/36 - continuously movable in one direction
  • B29C35/08 - by wave energy or particle radiation
  • B29L2031/751 - Mattresses, cushions
  • Y10S297/01 - Foam

• US Classifications

  • 297 - Chairs and seats
  • 005 - Beds