2202893

Information

• Patent Grant
• 2202893

• References
• Source

• Patent Number

  2,202,893

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1940
  84 years ago

• CPC

  • C22B11/023 - from pyrometallurgical residues
  • Y02P10/214 - by pyro metallurgy

• US Classifications

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