3846981

Information

• Patent Grant
• 3846981

• References
• Source

• Patent Number

  3,846,981

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • F01N3/206 - Adding periodically or continuously substances to exhaust gases for promoting purification
  • B01D53/927 - Successive elimination of carbon monoxide or hydrocarbons and nitrogen oxides
  • F01N3/08 - for rendering innocuous
  • F01N3/18 - characterised by methods of operation Regulation
  • F01N2610/02 - the substance being ammonia or urea
  • F02B3/06 - with compression ignition

• US Classifications

  • 060 - Power plants
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 423 - Chemistry of inorganic compounds