1972111

Information

• Patent Grant
• 1972111

• References
• Source

• Patent Number

  1,972,111

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1934
  90 years ago

• CPC

  • D06P1/6491 - (Thio)urea or (cyclic) derivatives
  • D06P1/24 - Anthraquinone dyes or anthracene nucleus containing vat dyes
  • Y10S8/921 - Cellulose ester or ether

• US Classifications

  • 008 - Bleaching and dyeing