1904815

Information

• Patent Grant
• 1904815

• References
• Source

• Patent Number

  1,904,815

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1933
  91 years ago

• CPC

  • D06P1/24 - Anthraquinone dyes or anthracene nucleus containing vat dyes
  • C09B1/343 - only sulfonated in the anthracene nucleus
  • Y10S8/921 - Cellulose ester or ether

• US Classifications

  • 008 - Bleaching and dyeing