2431537

Information

• Patent Grant
• 2431537

• References
• Source

• Patent Number

  2,431,537

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1947
  77 years ago

• CPC

  • B29C57/10 - Closing
  • B31B3/00 - Machinery characterised by making boxes or cartons by folding single-piece sheets, blanks, or webs
  • B65B7/14 - Closing collapsible or resilient tubes
  • B31B2201/297 - the boxes being cylindrical

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 072 - Metal deforming
  • 229 - Envelopes, wrappers, and paperboard boxes
  • 264 - Plastic and nonmetallic article shaping or treating: processes