2150443

Information

• Patent Grant
• 2150443

• References
• Source

• Patent Number

  2,150,443

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1939
  86 years ago

• CPC

  • B65D5/3657 - the adjacent sides being interconnected by gusset folds

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes