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:
Feb. 23, 1993
Filed:
Jan. 15, 1992
Applicant:
Inventor:
Steven D Kretchmer, Encino, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148538 ; 148678 ; 63 26 ; 63 15 ;
Abstract
A precious metal alloy compression-spring gemstone mounting is made by casting or working a quantity of alloy to form a gemstone mounting in a desired configuration, followed by annealing and heat-treating the mounting to increase its yield strength. A stone is then placed in the mounting and is retained therein by compressive spring force.