3591351

Information

• Patent Grant
• 3591351

• References
• Source

• Patent Number

  3,591,351

• Date Filed

  Not available

• Date Issued

  Tuesday, July 6, 1971
  53 years ago

• CPC

  • B31B3/00 - Machinery characterised by making boxes or cartons by folding single-piece sheets, blanks, or webs
  • B21D31/04 - Expanding other than provided for in groups B21D1/00 - B21D28/00
  • E04C2/32 - formed of corrugated or otherwise indented sheet-like material composed of such layers with or without layers of flat sheet-like material
  • E04C2/3405 - spaced apart by profiled spacer sheets
  • E04C2/365 - by honeycomb structures
  • E04C2002/3444 - Corrugated sheets
  • E04C2002/3455 - with trapezoidal corrugations
  • E04C2002/3483 - spaced apart by spacers stamped from the sheets
  • Y10T29/18 - Expanded metal making
  • Y10T428/12208 - Variation in both width and thickness
  • Y10T428/12368 - Struck-out portion type

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 029 - Metal working
  • 052 - Static structures