2211861

Information

• Patent Grant
• 2211861

• References
• Source

• Patent Number

  2,211,861

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1940
  84 years ago

• CPC

  • D06P3/40 - cellulose acetate
  • D06P1/6429 - bound to a six-membered aromatic carbocyclic ring
  • D06P5/2077 - after dyeing

• US Classifications

  • 008 - Bleaching and dyeing