3621530

Information

• Patent Grant
• 3621530

• References
• Source

• Patent Number

  3,621,530

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1971
  53 years ago

• CPC

  • B29C43/18 - incorporating preformed parts or layers
  • B29C43/42 - for undercut articles
  • B29C33/446 - and using a rotating movement to unscrew articles
  • B29C2043/3689 - on a support table, flat disk-like tables having moulds on the periphery
  • B29L2001/00 - Articles provided with screw threads

• US Classifications

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