3137431

Information

• Patent Grant
• 3137431

• References
• Source

• Patent Number

  3,137,431

• Date Filed

  Not available

• Date Issued

  Tuesday, June 16, 1964
  60 years ago

• CPC

  • B65D3/22 - with double walls with walls incorporating air-chambers with walls made of laminated material
  • B65D3/02 - characterised by shape
  • B65D3/14 - Discs fitting within container end and secured by bending, rolling, or folding operations

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes
  • D07 - Equipment for preparing or serving food or drink not elsewhere specified