1863265

Information

• Patent Grant
• 1863265

• References
• Source

• Patent Number

  1,863,265

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1932
  92 years ago

• CPC

  • C09B1/473 - the acyl groups being residues of a sulfonic acid
  • C09B1/22 - Dyes with unsubstituted amino groups

• US Classifications

  • 552 - Organic compounds