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:
Jun. 11, 1991
Filed:
Nov. 02, 1988
Applicant:
Inventors:
Edwin J Bielecki, Boyertown, PA (US);
Karl A Romberger, Gilbertsville, PA (US);
Bart F Bakke, Douglassville, PA (US);
Martin A Hobin, Allentown, PA (US);
Charles R Clark, Pottstown, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
423-9 ; 423 18 ; 423 20 ; 423 63 ; 423 68 ; 423D / ; 75374 ; 75 3 / ; 75622 ; 210688 ;
Abstract
A metallurgical processing system for economically recovering metal values, such as columbium, tantalum, thorium, and uranium from dilute source solids, such as digestion sludges, by a series of steps including: