3509138

Information

• Patent Grant
• 3509138

• References
• Source

• Patent Number

  3,509,138

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1970
  55 years ago

• CPC

  • C09B62/10 - Porphines Azoporphines
  • C09B62/082 - dyes containing in the molecule at least one azo group and at least one other chromophore group
  • Y10S8/918 - Cellulose textile

• US Classifications

  • 540 - Organic compounds
  • 008 - Bleaching and dyeing
  • 534 - Organic compounds
  • 544 - Organic compounds