2179731

Information

• Patent Grant
• 2179731

• References
• Source

• Patent Number

  2,179,731

• Date Filed

  Not available

• Date Issued

  Tuesday, November 14, 1939
  85 years ago

• CPC

  • B65D5/0227 - with end closures formed by inward folding of flaps and securing them by heat-sealing, adhesive applied to the flaps or staples
  • B65D5/6673 - the lid being held in closed position by application of separate elements

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes