3787552

Information

• Patent Grant
• 3787552

• References
• Source

• Patent Number

  3,787,552

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1974
  50 years ago

• CPC

  • B29C47/20 - with annular opening
  • B29C35/06 - for articles of indefinite length
  • B29C47/8805 - Heating
  • B29C47/00 - Extrusion moulding
  • B29C47/0023 - Hollow rigid articles having only one tubular passage
  • B29C47/0026 - Hollow flexible articles
  • B29C2035/042 - other than water
  • B29K2021/00 - Use of unspecified rubbers as moulding material
  • B29L2023/00 - Tubular articles

• US Classifications

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