2489463

Information

• Patent Grant
• 2489463

• References
• Source

• Patent Number

  2,489,463

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1949
  75 years ago

• CPC

  • C09B35/215 - of diarylethane or diarylethene
  • C09B35/16 - from hydroxy-amines
  • C09B67/0073 - Preparations of acid or reactive dyes in liquid form

• US Classifications

  • 106 - Compositions: coating or plastic
  • 534 - Organic compounds