3802847

Information

• Patent Grant
• 3802847

• References
• Source

• Patent Number

  3,802,847

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  50 years ago

• CPC

  • C01B31/30 - Carbides
  • F27B7/06 - adapted for treating the charge in vacuum or special atmosphere
  • F27B7/08 - externally heated
  • C01P2004/61 - Micrometer sized
  • C01P2004/62 - Submicrometer sized
  • C01P2006/42 - Magnetic properties
  • C01P2006/80 - Compositional purity
  • C01P2006/90 - Other properties not specified above
  • F27D2099/0008 - Resistor heating
  • Y10S266/905 - Refractory metal-extracting means

• US Classifications

  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 219 - Electric heating
  • 266 - Metallurgical apparatus
  • 373 - Industrial electric heating furnaces
  • 423 - Chemistry of inorganic compounds
  • 432 - Heating