3927606

Information

• Patent Grant
• 3927606

• References
• Source

• Patent Number

  3,927,606

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1975
  49 years ago

• CPC

  • B31B37/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents from webs
  • B31B2219/28 - Opening or distending bags
  • B31B2221/05 - the bags having multilayered walls
  • B31B2221/107 - obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
  • B31B2221/405 - the bags having their openings facing transversally to the direction of movement
  • Y10S493/936 - Square bottom

• US Classifications

  • 493 - Manufacturing container or tube from paper