3347448

Information

• Patent Grant
• 3347448

• References
• Source

• Patent Number

  3,347,448

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1967
  57 years ago

• CPC

  • B65D5/26 - with extensions of opposite sides mutually interlocking to lie against other sides
  • B65D5/22 - held erect by extensions of one or more sides being doubled-over to enclose extensions of adjacent sides

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes