3239389

Information

• Patent Grant
• 3239389

• References
• Source

• Patent Number

  3,239,389

• Date Filed

  Not available

• Date Issued

  Tuesday, March 8, 1966
  58 years ago

• CPC

  • C21D3/04 - Decarburising
  • C21D8/0457 - with diffusion of elements
  • C22C38/12 - containing tungsten, tantalum, molybdenum, vanadium, or niobium
  • C22C38/60 - containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
  • C21D3/08 - Extraction of nitrogen
  • C21D8/0473 - Final recrystallisation annealing

• US Classifications

  • 148 - Metal treatment