2539202

Information

• Patent Grant
• 2539202

• References
• Source

• Patent Number

  2,539,202

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1951
  73 years ago

• CPC

  • A61Q5/065 - Preparations for temporary colouring the hair
  • A61K8/44 - Aminocarboxylic acids or derivatives thereof
  • A61K8/66 - Enzymes
  • D06P3/305 - with oxidation dyes

• US Classifications

  • 008 - Bleaching and dyeing
  • 435 - Chemistry: molecular biology and microbiology