3868894

Information

• Patent Grant
• 3868894

• References
• Source

• Patent Number

  3,868,894

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1975
  49 years ago

• CPC

  • B31B41/00 - Machinery characterised by making envelopes or bags of other specific form or construction
  • B31B2221/05 - the bags having multilayered walls
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content
  • Y10S493/931 - having plural compartments

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 229 - Envelopes, wrappers, and paperboard boxes