2912809

Information

• Patent Grant
• 2912809

• References
• Source

• Patent Number

  2,912,809

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1959
  65 years ago

• CPC

  • B65B7/2871 - by gluing
  • B31B17/00 - Machinery characterised by making other boxes or cartons by assembling several separate sheets, blanks, or webs
  • B65B7/2878 - by heat-sealing
  • B31B2217/068 - having non-square, non-rectangular cross section
  • B31B2217/082 - Making boxes from tubular webs or blanks

• US Classifications

  • 053 - Package making
  • 219 - Electric heating