3400640

Information

• Patent Grant
• 3400640

• References
• Source

• Patent Number

  3,400,640

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1968
  56 years ago

• CPC

  • B31B1/50 - by interengaging tongues and slots
  • B65D5/302 - combined with a slot provided in an adjacent side wall
  • B31B2201/2666 - involving interconnecting side walls
  • B31B2201/6095 - and interengaging tongues and slots

• US Classifications

  • 493 - Manufacturing container or tube from paper