3721522

Information

• Patent Grant
• 3721522

• References
• Source

• Patent Number

  3,721,522

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • D06P3/045 - dyeing and degumming silk
  • D01C3/02 - De-gumming silk
  • D06M13/46 - Compounds containing quaternary nitrogen atoms
  • D06P3/043 - using dispersed dyes
  • Y10S8/917 - Wool or silk

• US Classifications

  • 008 - Bleaching and dyeing