3737543

Information

• Patent Grant
• 3737543

• References
• Source

• Patent Number

  3,737,543

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1973
  51 years ago

• CPC

  • A61K31/395 - having nitrogen as a ring hetero atom
  • A01N43/34 - having rings with one nitrogen atom as the only ring hetero atom
  • A45D20/24 - Shape or structure of the helmet body
  • C07D211/72 - with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, directly attached to ring carbon atoms

• US Classifications

  • 514 - Drug, bio-affecting and body treating compositions