3851022

Information

• Patent Grant
• 3851022

• References
• Source

• Patent Number

  3,851,022

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1974
  50 years ago

• CPC

  • B29C67/221 - Applying counter pressure during foaming
  • Y10S264/04 - Molding and forming bendable and flexible product from rigid preform
  • Y10S264/10 - Foamed polystyrene mold filling
  • Y10S264/64 - Processes of using preform in molding
  • Y10S264/65 - Processes of preheating prior to molding
  • Y10S264/66 - Processes of reshaping and reforming

• US Classifications

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