3504997

Information

• Patent Grant
• 3504997

• References
• Source

• Patent Number

  3,504,997

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1970
  54 years ago

• CPC

  • D06P3/241 - using acid dyes
  • C09B69/02 - Dyestuff salts
  • C09B69/06 - of cationic dyes with organic acids or with inorganic complex acids
  • D06P1/22 - using vat dyestuffs including indigo
  • D06P1/41 - using basic dyes
  • D06P1/66 - containing quaternary ammonium groups
  • D06P3/522 - using basic dyes
  • D06P3/66 - using reactive dyes
  • D06P3/72 - using dispersed dyestuffs
  • D06P3/76 - using basic dyes
  • D06P3/8204 - fibres of different chemical nature

• US Classifications

  • 008 - Bleaching and dyeing