1602695

Information

• Patent Grant
• 1602695

• References
• Source

• Patent Number

  1,602,695

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1926
  98 years ago

• CPC

  • C09B69/00 - Dyes not provided for by a single group of this subclass
  • C09B1/473 - the acyl groups being residues of a sulfonic acid
  • C09B1/5165 - only amino and hydroxy groups
  • C09B1/545 - Anthraquinones with aliphatic, cycloaliphatic or araliphatic ether groups
  • D06P1/0048 - Converting dyes in situ in a non-appropriate form by hydrolysis, saponification, reduction with split-off of a substituent
  • D06P3/40 - cellulose acetate
  • Y10S8/921 - Cellulose ester or ether

• US Classifications

  • 008 - Bleaching and dyeing