3002837

Information

• Patent Grant
• 3002837

• References
• Source

• Patent Number

  3,002,837

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1961
  63 years ago

• CPC

  • C07C255/00 - Carboxylic acid nitriles
  • C07D231/24 - having sulfone or sulfonic acid radicals in the molecule
  • C07D231/26 - 1-Phenyl-3-methyl-5- pyrazolones, unsubstituted or substituted on the phenyl ring
  • C07D261/08 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
  • C07D277/64 - with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
  • C09B23/04 - one >CH- group
  • C09B23/143 - the ethylene chain carrying a COOH or a functionally modified derivative, e.g.-CN, -COR, -COOR, -CON=, C6H5-CH=C-CN
  • C09B23/146 - (Benzo)thiazolstyrylamino dyes
  • G03C1/832 - Methine or polymethine dyes

• US Classifications

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