1841637

Information

• Patent Grant
• 1841637

• References
• Source

• Patent Number

  1,841,637

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1932
  92 years ago

• CPC

  • C09B35/08 - the tetrazo component being a derivative of biphenyl
  • C09B45/38 - Preparation from compounds with -OH and -COOH adjacent in the same ring or in peri position

• US Classifications

  • 534 - Organic compounds