2731191

Information

• Patent Grant
• 2731191

• References
• Source

• Patent Number

  2,731,191

• Date Filed

  Not available

• Date Issued

  Tuesday, January 17, 1956
  69 years ago

• CPC

  • B65D5/2038 - at least two opposed folded-up portions having a non-rectangular shape
  • B65D5/308 - the slot being provided in a lateral extension of a side wall combined with a tongue being a part of an adjacent side wall
  • Y10S229/919 - Reinforced wall

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes