3604318

Information

• Patent Grant
• 3604318

• References
• Source

• Patent Number

  3,604,318

• Date Filed

  Not available

• Date Issued

  Tuesday, September 14, 1971
  53 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
  • B31B2221/102 - obtained from essentially rectangular sheets

• US Classifications

  • 493 - Manufacturing container or tube from paper