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:
Oct. 16, 1984
Filed:
Jun. 21, 1983
Applicant:
Inventors:
Gianluigi D'Altilia, Rome, IT;
Francesco Rinaldi, Florence, IT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75 / ; 75 / ; 75 / ; 75 82 ; 75 844 ; 75 845 ; 423350 ;
Abstract
High-purity metals are obtained by reducing the respective halides with reducing metals in the vapor phase in two or three stages, said reducing metals having greater halogen affinity than that of the metals to be reduced.