1859255

Information

• Patent Grant
• 1859255

• References
• Source

• Patent Number

  1,859,255

• Date Filed

  Not available

• Date Issued

  Tuesday, May 17, 1932
  92 years ago

• CPC

  • C09B5/2427 - only sulfur-containing hetero rings

• US Classifications

  • 549 - Organic compounds