3772021

Information

• Patent Grant
• 3772021

• References
• Source

• Patent Number

  3,772,021

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1973
  51 years ago

• CPC

  • C07D213/20 - Quaternary compounds thereof
  • C07D231/12 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
  • C07D233/56 - with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
  • C07D249/08 - 1,2,4-Triazoles Hydrogenated 1,2,4-triazoles
  • G03C1/043 - Polyalkylene oxides Polyalkylene sulfides Polyalkylene selenides Polyalkylene tellurides
  • G03C1/08 - Sensitivity-increasing substances
  • G03C5/3056 - Macromolecular additives

• US Classifications

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