3355531

Information

• Patent Grant
• 3355531

• References
• Source

• Patent Number

  3,355,531

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1967
  57 years ago

• CPC

  • B29C47/0009 - characterised by the shape of the articles
  • B29C47/0021 - Flat flexible articles
  • B29C47/0026 - Hollow flexible articles
  • B29C47/0054 - Extrusion moulding combined with blow-moulding or thermoforming
  • B29C47/0057 - Extrusion moulding combined with shaping by orienting, stretching or shrinking
  • B29C47/0059 - Extrusion moulding combined with shaping by flattening, folding or bending
  • Y10S264/909 - Direct application of fluid pressure differential to stretch an article or preform and heat shrinking of stretched article or preform

• US Classifications

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