1900172

Information

• Patent Grant
• 1900172

• References
• Source

• Patent Number

  1,900,172

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1933
  92 years ago

• CPC

  • D06P1/24 - Anthraquinone dyes or anthracene nucleus containing vat dyes
  • D06P1/28 - Esters of vat dyestuffs
  • Y10S8/921 - Cellulose ester or ether

• US Classifications

  • 008 - Bleaching and dyeing