3422777

Information

• Patent Grant
• 3422777

• References
• Source

• Patent Number

  3,422,777

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1969
  56 years ago

• CPC

  • H01J5/12 - Double-wall vessels or containers
  • B21D53/02 - heat exchangers or parts thereof
  • B21D53/04 - of sheet metal
  • B21D53/08 - of both metal tubes and sheet metal
  • F28F1/105 - the means being corrugated elements extending around the tubular elements
  • F28F1/128 - Fins with openings
  • F28F3/025 - the means being corrugated, plate-like elements
  • H01L23/3672 - Foil-like cooling fins or heat sinks
  • H01L2924/0002 - Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
  • Y10T29/49366 - Sheet joined to sheet

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming
  • 257 - Active solid-state devices