2167139

Information

• Patent Grant
• 2167139

• References
• Source

• Patent Number

  2,167,139

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1939
  85 years ago

• CPC

  • C09K3/22 - for dust-laying or dust-absorbing
  • C09K3/1028 - Fibres
  • C09K3/12 - Materials for stopping leaks
  • C09K2200/0405 - Hydrocarbons
  • C09K2200/0429 - Alcohols, phenols, ethers
  • C09K2200/0458 - Nitrogen-containing compounds

• US Classifications

  • 048 - Gas: heating and illuminating
  • 252 - Compositions