2585446

Information

• Patent Grant
• 2585446

• References
• Source

• Patent Number

  2,585,446

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1952
  72 years ago

• CPC

  • B28B21/205 - having a rigid frame inside the inflatable part of the core
  • B28B21/62 - circumferential laterally tensioned

• US Classifications

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