3511429

Information

• Patent Grant
• 3511429

• References
• Source

• Patent Number

  3,511,429

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1970
  54 years ago

• CPC

  • B65D5/248 - and at least one side being extended and doubled-over to enclose the adjacent gusset flaps
  • B65D5/20 - by folding-up portions connected to a central panel from all sides to form a container body
  • B65D5/247 - and being maintained in erected condition by integral mechanical locking means formed on, or coacting with, the gusset folds
  • B65D5/26 - with extensions of opposite sides mutually interlocking to lie against other sides

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes