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US Patent 4473446 - Chromic acid-fluoride anodizing surface treatment for titanium
US Patent Issued on September 25, 1984
Estimated Patent Expiration Date:
January 6, 2003Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
January 6, 2003Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA method for surface treating titanium articles prior to adhesive bonding by anodization in a chromic-hydrofluoric acid bath at a low anodizing potential of greater than one volt but less than five volts. | InventorsAssigneeApplicationNo. 06/456265 filed on 01/06/1983US Classes:205/212, Predominantly titanium, vanadium, zirconium, niobium, hafnium, tantalum, molybdenum, or tungsten substrate205/220, Treating electrolytic or nonelectrolytic coating after it is formed205/322, Predominantly titanium, vanadium, zirconium, niobium, hafnium, or tantalum substrate205/333, Oxide-containing coating (e.g., lead dioxide, etc.)428/472Refractory metal salt or oxideExaminersPrimary: Andrews, R. L.Attorney, Agent or FirmUS Patent References3959091Method of anodizing titanium to promote adhesionIssued on: 05/25/1976 Inventor: Moji , et al. International ClassesC25D 11/26 (20060101)C25D 11/02 (20060101) |
