2445538

Information

• Patent Grant
• 2445538

• References
• Source

• Patent Number

  2,445,538

• Date Filed

  Not available

• Date Issued

  Tuesday, July 20, 1948
  76 years ago

• CPC

  • C09B1/08 - Dyes containing only OH-groups
  • C07C46/00 - Preparation of quinones

• US Classifications

  • 552 - Organic compounds