2153930

Information

• Patent Grant
• 2153930

• References
• Source

• Patent Number

  2,153,930

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1939
  85 years ago

• CPC

  • G03C1/12 - Methine and polymethine dyes
  • G03C1/122 - Azacyanines

• US Classifications

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