2728669

Information

• Patent Grant
• 2728669

• References
• Source

• Patent Number

  2,728,669

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1955
  69 years ago

• CPC

  • G03C7/3244 - Couplers forming azinic dyes; Specific developers therefor
  • C07C309/46 - having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings

• US Classifications

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