3025770

Information

• Patent Grant
• 3025770

• References
• Source

• Patent Number

  3,025,770

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1962
  62 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
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content
  • B31B2221/105 - obtained from rhombus shaped sheets
  • Y10S493/917 - Envelope
  • Y10T83/566 - Interrelated tool actuating means and means to actuate work immobilizer

• US Classifications

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