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. 07, 1983
Filed:
Apr. 27, 1982
Applicant:
Inventor:
Stephen P Schaffer, Bloomfield, CT (US);
Assignee:
The J. M. Ney Company, Bloomfield, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420463 ; 420464 ;
Abstract
A palladium alloy for use in making porcelain coated dental restorations comprises 50-85 percent palladium, 5-40 percent copper and/or cobalt, 1-15 percent gallium, up to 5 percent of a modifier selected from nickel, gold, indium, ruthenium and tin, up to 0.5 percent rhenium and/or iridium, and up to 1 percent boron. The dental restorations obtained by firing porcelain against castings of this alloy exhibit freedom from discoloration, and excellent bond strength is obtained between the porcelain coating and the underlying alloy casting.