2232720

Information

• Patent Grant
• 2232720

• References
• Source

• Patent Number

  2,232,720

• Date Filed

  Not available

• Date Issued

  Tuesday, February 25, 1941
  83 years ago

• CPC

  • B31B21/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from sheets or blanks
  • B31B19/98 - in stacks or bundles
  • B31B2219/928 - Stacking bags by means of a rotary stacking drum
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 271 - Sheet feeding or delivering