3740821

Information

• Patent Grant
• 3740821

• References
• Source

• Patent Number

  3,740,821

• Date Filed

  Not available

• Date Issued

  Tuesday, June 26, 1973
  51 years ago

• CPC

  • B31B17/00 - Machinery characterised by making other boxes or cartons by assembling several separate sheets, blanks, or webs
  • B21D51/04 - built-up objects
  • B21D51/10 - conically or cylindrically shaped objects
  • B21D51/16 - characterised by the use of the objects
  • B65D83/0005 - Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
  • B31B2217/082 - Making boxes from tubular webs or blanks
  • Y10T29/4978 - Assisting assembly or disassembly
  • Y10T29/49876 - by snap fit
  • Y10T29/53322 - Means to assemble container

• US Classifications

  • 029 - Metal working