3689270

Information

• Patent Grant
• 3689270

• References
• Source

• Patent Number

  3,689,270

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1972
  52 years ago

• CPC

  • C07D487/04 - Ortho-condensed systems
  • G03C1/494 - Silver salt compositions other than silver halide emulsions Photothermographic systems Thermographic systems using noble metal compounds

• US Classifications

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