3803989

Information

• Patent Grant
• 3803989

• References
• Source

• Patent Number

  3,803,989

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • B31B29/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness or contents
  • B31B2221/20 - the bags having structural provision at the base for thickness of content
  • B31B2221/405 - the bags having their openings facing transversally to the direction of movement

• US Classifications

  • 493 - Manufacturing container or tube from paper