3916770

Information

• Patent Grant
• 3916770

• References
• Source

• Patent Number

  3,916,770

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1975
  49 years ago

• CPC

  • B31B29/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness or contents
  • B65D31/08 - with block bottoms
  • B31B2221/20 - the bags having structural provision at the base for thickness of content
  • B31B2221/407 - starting from already formed bags
  • Y10S493/936 - Square bottom

• US Classifications

  • 493 - Manufacturing container or tube from paper