3488802

Information

• Patent Grant
• 3488802

• References
• Source

• Patent Number

  3,488,802

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1970
  54 years ago

• CPC

  • B29C67/222 - using expandable particles or beads as starting material
  • B29C43/00 - Compression moulding
  • B29C51/02 - Combined thermoforming and manufacture of the preform
  • B29C67/221 - Applying counter pressure during foaming
  • B29L2031/7168 - Egg-cartons

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus