2581115

Information

• Patent Grant
• 2581115

• References
• Source

• Patent Number

  2,581,115

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1952
  73 years ago

• CPC

  • B31B1/76 - Opening or distending flattened articles
  • B31B2201/28 - Opening or distending flattened boxes
  • B31B2203/003 - Making collapsible boxes Making boxes being in a collapsed condition at least during some of the manufacturing steps
  • B31B2203/084 - Making boxes having all side walls attached to the bottom
  • Y10S493/906 - having multilayer wall
  • Y10T74/18184 - Crank, pitman, and lever

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 074 - Machine element or mechanism