2172504

Information

• Patent Grant
• 2172504

• References
• Source

• Patent Number

  2,172,504

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1939
  85 years ago

• CPC

  • B65D3/14 - Discs fitting within container end and secured by bending, rolling, or folding operations
  • B31B45/00 - Machinery characterised by making containers having corrugated or pleated walls
  • B65D3/02 - characterised by shape
  • B65D3/08 - having a cross-section of varying shape
  • B31B2201/2695 - involving corrugating or pleating
  • B31B2217/062 - Making conical or pyramidal boxes Making boxes of varying cross-section
  • B31B2217/064 - Making boxes of curved cross section
  • B31B2217/082 - Making boxes from tubular webs or blanks
  • B31B2241/005 - Making paper bottles

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes
  • 493 - Manufacturing container or tube from paper