3309970

Information

• Patent Grant
• 3309970

• References
• Source

• Patent Number

  3,309,970

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1967
  57 years ago

• CPC

  • B31B1/00 - Box, carton, envelope or bag making machinery characterised by performing specific operations
  • B31B2201/2683 - by moving belts or chains
  • B31B2203/006 - Collapsing already made boxes into a flat condition

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 229 - Envelopes, wrappers, and paperboard boxes