2488922

Information

• Patent Grant
• 2488922

• References
• Source

• Patent Number

  2,488,922

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1949
  75 years ago

• CPC

  • B22C9/03 - formed by vacuum-sealed moulding
  • A61C9/00 - Impression cups
  • A61C9/0013 - Inflatable trays
  • B29C33/3821 - composed of particles enclosed in a bag

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 012 - Boot and shoe making
  • 206 - Special receptacle or package
  • 425 - Plastic article or earthenware shaping or treating: apparatus