2385646

Information

• Patent Grant
• 2385646

• References
• Source

• Patent Number

  2,385,646

• Date Filed

  Not available

• Date Issued

  Tuesday, September 25, 1945
  79 years ago

• CPC

  • B31B23/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from webs
  • B31B21/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from sheets or blanks
  • B31B41/00 - Machinery characterised by making envelopes or bags of other specific form or construction
  • B31B2237/10 - the bags having no structural provision at the base for thickness of content
  • B31B2237/403 - the bags having their openings facing in the direction of movement
  • B31B2241/007 - Making recording disc envelopes

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 383 - Flexible bags