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:
Mar. 18, 1986
Filed:
Dec. 26, 1984
Applicant:
Inventor:
Arun Prasad, Cheshire, CT (US);
Assignee:
Jeneric Industries, Inc., Wallingford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420464 ; 420463 ; 433207 ; 4332221 ;
Abstract
Grain refined palladium-based dental alloys contain about 70-85 weight percent palladium, 7-15 weight percent copper, 2-8 weight percent gallium, 2-15 weight percent indium, 0.2-3.0 weight percent rhenium or ruthenium and an effective amount of boron up to about 0.15% which eliminates the formation of bubbles in porcelain during the porcelain firing process. In addition, there can be an effective amount of zinc up to about 0.5 weight percent. Alternately, in lieu of zinc, the boron is added in the form of calcium boride.