3646858

Information

• Patent Grant
• 3646858

• References
• Source

• Patent Number

  3,646,858

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1972
  52 years ago

• CPC

  • B31B19/02 - and having means for feeding or positioning sheets, blanks, or webs
  • 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
  • B31B2219/02 - Feeding or positioning webs, sheets or bags
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content
  • B31B2221/105 - obtained from rhombus shaped sheets
  • Y10S493/917 - Envelope

• US Classifications

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