2235208

Information

• Patent Grant
• 2235208

• References
• Source

• Patent Number

  2,235,208

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1941
  83 years ago

• CPC

  • C09B1/20 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/545 - Anthraquinones with aliphatic, cycloaliphatic or araliphatic ether groups
  • C09B1/60 - substituted by aliphatic, cycloaliphatic or araliphatic radicals
  • D06P1/384 - reactive group not directly attached to heterocyclic group
  • D06P3/401 - using acid dyes
  • D06P3/42 - using dispersed dyestuffs

• US Classifications

  • 008 - Bleaching and dyeing
  • 552 - Organic compounds