3475529

Information

• Patent Grant
• 3475529

• References
• Source

• Patent Number

  3,475,529

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1969
  55 years ago

• CPC

  • B28B23/028 - for double - wall articles
  • B28B23/046 - Post treatment to obtain pre-stressed articles

• US Classifications

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