3919421

Information

• Patent Grant
• 3919421

• References
• Source

• Patent Number

  3,919,421

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1975
  49 years ago

• CPC

  • C07J5/0092 - by an OH group free esterified or etherified
  • C07J71/0031 - at positions 16, 17

• US Classifications

  • 514 - Drug, bio-affecting and body treating compositions
  • 540 - Organic compounds