2785440

Information

• Patent Grant
• 2785440

• References
• Source

• Patent Number

  2,785,440

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1957
  68 years ago

• CPC

  • B29C44/58 - Moulds
  • A47C7/34 - with springs in compression
  • B60N2/7052 - Springs using a combination of metal and rubber
  • 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
  • Y10S264/46 - Molding using an electrical heat
  • Y10S297/01 - Foam
  • Y10S521/915 - Utilizing electrical or wave energy during cell forming process
  • Y10T29/48 - Upholstered article making
  • Y10T29/481 - Method

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 029 - Metal working
  • 249 - Static molds
  • 297 - Chairs and seats
  • 521 - Synthetic resins or natural rubbers