2858057

Information

• Patent Grant
• 2858057

• References
• Source

• Patent Number

  2,858,057

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1958
  66 years ago

• CPC

  • B65D3/262 - forming a circumferential line of weakness
  • B65D3/22 - with double walls with walls incorporating air-chambers with walls made of laminated material

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes