3564979

Information

• Patent Grant
• 3564979

• References
• Source

• Patent Number

  3,564,979

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1971
  54 years ago

• CPC

  • B31B29/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness or contents
  • B31B2219/028 - the holders rotating
  • B31B2221/20 - the bags having structural provision at the base for thickness of content
  • B31B2221/402 - the bags having their openings facing in the direction of movement

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 053 - Package making