3452390

Information

• Patent Grant
• 3452390

• References
• Source

• Patent Number

  3,452,390

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1969
  55 years ago

• CPC

  • B29C67/221 - Applying counter pressure during foaming
  • B29C67/222 - using expandable particles or beads as starting material
  • Y10S264/20 - Tar bonded
  • Y10S425/02 - Fluidized bed
  • Y10S425/20 - Molding plants

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 432 - Heating