3616841

Information

• Patent Grant
• 3616841

• References
• Source

• Patent Number

  3,616,841

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1971
  53 years ago

• CPC

  • C04B38/0615 - the burned-out substance being a monolitic element having approximately the same dimensions as the final article
  • B22D25/005 - Casting metal foams
  • B22F3/1121 - by using decomposable, meltable or sublimatable fillers
  • B22F3/1134 - Inorganic fillers
  • B28B1/50 - specially adapted for producing articles of expanded material
  • B22F2998/00 - Supplementary information concerning processes or compositions relating to powder metallurgy
  • C22C2001/081 - Casting porous metals into porous preform skelet without foaming

• US Classifications

  • 164 - Metal founding
  • 264 - Plastic and nonmetallic article shaping or treating: processes