3735675

Information

• Patent Grant
• 3735675

• References
• Source

• Patent Number

  3,735,675

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1973
  51 years ago

• CPC

  • B31B19/82 - Attaching windows
  • 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
  • B31B2219/9038 - Forming or attaching windows
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content
  • Y10T83/0596 - Cutting wall of hollow work
  • Y10T156/1309 - and securing separate part over hole or aperture

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 083 - Cutting
  • 156 - Adhesive bonding and miscellaneous chemical manufacture