2165493

Information

• Patent Grant
• 2165493

• References
• Source

• Patent Number

  2,165,493

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1939
  86 years ago

• CPC

  • C09B49/10 - from diphenylamines, indamines, or indophenols

• US Classifications

  • 544 - Organic compounds
  • 196 - Mineral oils: apparatus
  • 420 - Alloys or metallic compositions
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 548 - Organic compounds