3897943

Information

• Patent Grant
• 3897943

• References
• Source

• Patent Number

  3,897,943

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1975
  49 years ago

• CPC

  • B29C53/043 - using rolls or endless belts
  • B31F1/0025 - Making the folding lines using rotary tools
  • B31F1/0029 - Folding edges; Folding edges combined with joining; Reinforcing edges during the folding thereof
  • B29C53/36 - Bending and joining
  • B29C2791/003 - Making articles of indefinite length
  • B29K2021/00 - Use of unspecified rubbers as moulding material
  • B29K2105/246 - Uncured
  • B29L2030/003 - Plies; Breakers

• US Classifications

  • 493 - Manufacturing container or tube from paper