2276554

Information

• Patent Grant
• 2276554

• References
• Source

• Patent Number

  2,276,554

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1942
  82 years ago

• CPC

  • G03C7/26 - Silver halide emulsions for subtractive colour processes
  • C09B23/0083 - the heteroring being rhodanine in the chain
  • G03C1/26 - Polymethine chain forming part of a heterocyclic ring

• US Classifications

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