2249859

Information

• Patent Grant
• 2249859

• References
• Source

• Patent Number

  2,249,859

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1941
  83 years ago

• CPC

  • B65D5/3685 - by folding the blank to U-shape to form the base and opposite sides, the remaining sides being formed by extensions of these opposite sides
  • B31B1/00 - Box, carton, envelope or bag making machinery characterised by performing specific operations
  • B31B2201/2637 - by continuously feeding same to stationary members
  • B31B2201/2654 - by plungers moving through folding dies
  • B31B2201/2666 - involving interconnecting side walls
  • B31B2201/2679 - by rotary members co-operating with blades
  • B31B2203/006 - Collapsing already made boxes into a flat condition
  • Y10S229/90 - including means to facilitate handling by a mechanical apparatus during manufacturing or filling

• US Classifications

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