3608811

Information

• Patent Grant
• 3608811

• References
• Source

• Patent Number

  3,608,811

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1971
  53 years ago

• CPC

  • B65D5/305 - combined with a slot provided at the fold line between an adjacent side wall and a lateral extension thereof
  • B31B1/50 - by interengaging tongues and slots
  • B65D5/247 - and being maintained in erected condition by integral mechanical locking means formed on, or coacting with, the gusset folds
  • B31B2201/2666 - involving interconnecting side walls
  • B31B2201/6095 - and interengaging tongues and slots

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes