3186274

Information

• Patent Grant
• 3186274

• References
• Source

• Patent Number

  3,186,274

• Date Filed

  Not available

• Date Issued

  Tuesday, June 1, 1965
  59 years ago

• CPC

  • 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
  • B31B2219/9048 - involving cutting windows
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content
  • Y10S83/911 - Envelope blank forming
  • Y10T83/2079 - Remaining or re-inserted product portion from base material
  • Y10T83/2109 - Resiliently mounted
  • Y10T83/2185 - Suction gripper

• US Classifications

  • 083 - Cutting
  • 493 - Manufacturing container or tube from paper