3840388

Information

• Patent Grant
• 3840388

• References
• Source

• Patent Number

  3,840,388

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • B27K3/04 - Impregnating in open tanks
  • B27K3/0214 - Drying
  • B27K3/0278 - involving an additional treatment during or after impregnation
  • B27K3/52 - Impregnating agents containing mixtures of inorganic and organic compounds
  • B27K5/001 - Heating
  • B27K5/04 - Combined bleaching or impregnating and drying of wood
  • B27K2240/30 - Fireproofing

• US Classifications

  • 427 - Coating processes
  • 156 - Adhesive bonding and miscellaneous chemical manufacture