The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 1993
Filed:
Apr. 22, 1992
Applicant:
Inventors:
Mathew Cooper, Fombell, PA (US);
Harry Rosenberg, Pittsburgh, PA (US);
Assignee:
The Alta Group, Fombell, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
205322 ; 205332 ;
Abstract
A method is disclosed for producing an anodized film on titanium, its alloys and other metals such that the film deposited will have a specific leak rate of less than one nanoamp per square centimeter at room temperature with an impressed electric field of at least five volts, where the anodization is performed in a solution consisting of liquid ortho-phosphoric acid of reduced water content in an aprotic solvent, and articles of manufacture therefrom.