3172342

Information

• Patent Grant
• 3172342

• References
• Source

• Patent Number

  3,172,342

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1965
  59 years ago

• CPC

  • B31B37/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents from webs
  • B31B2201/0294 - the holders rotating
  • B31B2221/107 - obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
  • 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
  • B31B2221/60 - starting from tubular sheets

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 118 - Coating apparatus