3739409

Information

• Patent Grant
• 3739409

• References
• Source

• Patent Number

  3,739,409

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1973
  51 years ago

• CPC

  • A47C27/148 - of different resilience
  • A47C27/061 - of adjustable resiliency
  • A47C27/144 - inside the mattress
  • A47C27/15 - consisting of two or more layers
  • Y10S5/935 - with adjustable firmness

• US Classifications

  • 005 - Beds