2723604

Information

• Patent Grant
• 2723604

• References
• Source

• Patent Number

  2,723,604

• Date Filed

  Not available

• Date Issued

  Tuesday, November 15, 1955
  69 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
  • B31B2219/9045 - involving applying window patches
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content
  • Y10S493/925 - having mesh or window opening
  • Y10T83/4836 - With radial overlap of the cutting members

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 083 - Cutting
  • 131 - Tobacco