3865019

Information

• Patent Grant
• 3865019

• References
• Source

• Patent Number

  3,865,019

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1975
  49 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

• US Classifications

  • 493 - Manufacturing container or tube from paper