2268157

Information

• Patent Grant
• 2268157

• References
• Source

• Patent Number

  2,268,157

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1941
  83 years ago

• CPC

  • C07F9/4068 - Esters of pyrophosphonic acids; Esters of phosphonic acid anhydrides
  • C07F9/38 - Phosphonic acids RP(=O)(OH)2 Thiophosphonic acids

• US Classifications

  • 562 - Organic compounds
  • 209 - Classifying, separating, and assorting solids
  • 556 - Organic compounds
  • 558 - Organic compounds
  • 987 - Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system