3162643

Information

• Patent Grant
• 3162643

• References
• Source

• Patent Number

  3,162,643

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1964
  60 years ago

• CPC

  • C09B43/003 - Cyclisation of azo dyes; Condensation of azo dyes with formation of ring
  • G03C7/26 - Silver halide emulsions for subtractive colour processes
  • G03C7/39224 - with a nitrogen-containing function

• US Classifications

  • 548 - Organic compounds
  • 534 - Organic compounds
  • 546 - Organic compounds
  • 549 - Organic compounds
  • 554 - Organic compounds
  • 558 - Organic compounds
  • 562 - Organic compounds
  • 564 - Organic compounds