3669347

Information

• Patent Grant
• 3669347

• References
• Source

• Patent Number

  3,669,347

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1972
  52 years ago

• CPC

  • B31B29/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness or contents
  • B65D31/10 - with gusseted sides
  • B31B2221/20 - the bags having structural provision at the base for thickness of content
  • B31B2221/407 - starting from already formed bags

• US Classifications

  • 383 - Flexible bags