3401404

Information

• Patent Grant
• 3401404

• References
• Source

• Patent Number

  3,401,404

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1968
  56 years ago

• CPC

  • C09B23/105 - two >CH- groups
  • C09B23/107 - four >CH- groups
  • C09B35/023 - in which the coupling component is a hydroxy or polyhydroxy compound
  • C09B35/16 - from hydroxy-amines
  • G03C1/22 - with an even number of CH groups
  • G03C7/28 - Silver dye bleach processes Materials therefor Preparing or processing such materials

• US Classifications

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