3669644

Information

• Patent Grant
• 3669644

• References
• Source

• Patent Number

  3,669,644

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1972
  52 years ago

• CPC

  • C22B15/0056 - Scrap treating
  • C22B7/001 - Dry processes
  • C22B15/0015 - Oxidizing roasting
  • Y02P10/214 - by pyro metallurgy
  • Y02P10/22 - of Cu

• US Classifications

  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
  • 423 - Chemistry of inorganic compounds