2199987

Information

• Patent Grant
• 2199987

• References
• Source

• Patent Number

  2,199,987

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1940
  84 years ago

• CPC

  • C09B31/04 - from a coupling component "C" containing a directive amino group
  • C09B35/12 - from amines

• US Classifications

  • 534 - Organic compounds
  • 549 - Organic compounds