3244346

Information

• Patent Grant
• 3244346

• References
• Source

• Patent Number

  3,244,346

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1966
  58 years ago

• CPC

  • B29C44/5627 - by mechanical deformation
  • B29C44/352 - Means for giving the foam different characteristics in different directions
  • B29C67/221 - Applying counter pressure during foaming
  • B29C67/222 - using expandable particles or beads as starting material
  • B65D81/022 - Containers made of shock-absorbing material
  • B65D85/321 - Trays made of pressed carton and provided with recesses
  • B29K2025/00 - Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
  • B29L2031/7168 - Egg-cartons
  • Y10S264/04 - Molding and forming bendable and flexible product from rigid preform

• US Classifications

  • 206 - Special receptacle or package
  • 229 - Envelopes, wrappers, and paperboard boxes
  • 264 - Plastic and nonmetallic article shaping or treating: processes