3821823

Information

• Patent Grant
• 3821823

• References
• Source

• Patent Number

  3,821,823

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1974
  50 years ago

• CPC

  • A47C27/20 - with springs moulded in, or situated in cavities or openings in foamed material
  • A47C27/065 - of special shape
  • B29C44/1266 - the preformed part being completely encapsulated
  • B68G11/06 - with embedded springs

• US Classifications

  • 005 - Beds