3681081

Information

• Patent Grant
• 3681081

• References
• Source

• Patent Number

  3,681,081

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1972
  52 years ago

• CPC

  • G03C1/832 - Methine or polymethine dyes
  • C09B23/0091 - having only one heterocyclic ring at one end of the methine chain
  • C09B23/06 - three >CH- groups
  • C09B23/083 - five >CH- groups
  • C09B23/105 - two >CH- groups
  • C09B23/12 - the polymethine chain being branched "branched" means that the substituent on the polymethine chain forms a new conjugated system
  • G03C1/12 - Methine and polymethine dyes
  • G03C1/83 - Organic dyestuffs therefor

• US Classifications

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