2140878

Information

• Patent Grant
• 2140878

• References
• Source

• Patent Number

  2,140,878

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1938
  86 years ago

• CPC

  • B27K3/52 - Impregnating agents containing mixtures of inorganic and organic compounds
  • B27K3/22 - Compounds of zinc or copper
  • B27K3/30 - Compounds of fluorine
  • B27K3/42 - nitrated, or nitrated and halogenated

• US Classifications

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