3576154

Information

• Patent Grant
• 3576154

• References
• Source

• Patent Number

  3,576,154

• Date Filed

  Not available

• Date Issued

  Tuesday, April 27, 1971
  53 years ago

• CPC

  • B31B37/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents from webs
  • B31B2237/055 - involving folding a web about an already tubular web
  • Y10S493/933 - having multilayer wall

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 383 - Flexible bags