2953071

Information

• Patent Grant
• 2953071

• References
• Source

• Patent Number

  2,953,071

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1960
  64 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
  • B31B2219/9045 - involving applying window patches
  • B31B2221/105 - obtained from rhombus shaped sheets
  • Y10S493/919 - having window
  • Y10T83/4708 - With means to render cutter pass[es] ineffective
  • Y10T83/483 - With cooperating rotary cutter or backup

• US Classifications

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