1988462

Information

• Patent Grant
• 1988462

• References
• Source

• Patent Number

  1,988,462

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1935
  90 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
  • B31B19/16 - Cutting webs to form sheets or blanks
  • B31B2219/145 - Cutting webs
  • B31B2219/148 - Cutting-out portions from the sides of webs or sheets
  • 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

• US Classifications

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