3770447

Information

• Patent Grant
• 3770447

• References
• Source

• Patent Number

  3,770,447

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1973
  51 years ago

• CPC

  • C07D231/56 - Benzopyrazoles Hydrogenated benzopyrazoles
  • G03C7/3231 - Couplers containing an indazolone ring

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 548 - Organic compounds