1944794

Information

• Patent Grant
• 1944794

• References
• Source

• Patent Number

  1,944,794

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1934
  91 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
  • B31B1/18 - Slitting webs longitudinally
  • B31B1/68 - by stitching, stapling, or riveting
  • 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
  • B31B2201/146 - cutting or slitting webs longitudinally
  • B31B2201/6052 - by stitching, stapling, or riveting
  • B31B2221/102 - obtained from essentially rectangular sheets
  • B31B2237/10 - the bags having no structural provision at the base for thickness of content
  • B31B2237/40 - involving folding webs longitudinally
  • B31B2237/406 - the bags having their openings facing transversally to the direction of movement
  • Y10S493/917 - Envelope

• US Classifications

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