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:
May. 25, 1999
Filed:
Oct. 06, 1997
Carolyn M Kramer Primus, Sarasota, FL (US);
Paul D Hammesfahr, Wyoming, DE (US);
Ceramco Inc., Burlington, NJ (US);
Abstract
The invention provides a kit and method for the preparation of dental products. First, second and third materials are provided in labeled containers. Preferably the first, second and third materials are pastes or powders. The first material has a lightness value (L.sub.1) when formed into a least opaque layer. The second material has a lightness value (L.sub.2) when formed into a less opaque layer. The third material has a lightness value (L.sub.3) when formed into a most opaque layer. The third lightness value is greater than the second lightness value, which is greater than the first lightness value. The lightness value differences between the third lightness value (L.sub.3) and the first lightness value (L.sub.1) are less than 10 CIE L*a*b units.