2717831

Information

• Patent Grant
• 2717831

• References
• Source

• Patent Number

  2,717,831

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1955
  69 years ago

• CPC

  • C07D221/10 - Aza-phenanthrenes
  • G03C7/3244 - Couplers forming azinic dyes; Specific developers therefor

• US Classifications

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