3472681

Information

• Patent Grant
• 3472681

• References
• Source

• Patent Number

  3,472,681

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1969
  55 years ago

• CPC

  • C04B41/009 - characterised by the material treated
  • C04B41/5033 - Chromium oxide
  • C04B41/65 - with inorganic materials
  • C04B2111/00525 - for metallic surfaces
  • Y10T428/31652 - Of asbestos

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 148 - Metal treatment
  • 524 - Synthetic resins or natural rubbers