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:
Sep. 13, 2005
Filed:
Dec. 11, 2002
Alain R. E. Carre, Le Chatelet-en-Brie, FR;
Celine C. Guermeur, Chartrettes, FR;
Marianne Semjen, Veneux les Sablons, FR;
Alain R. E. Carre, Le Chatelet-en-Brie, FR;
Celine C. Guermeur, Chartrettes, FR;
Marianne Semjen, Veneux les Sablons, FR;
Eurokera, Chateau-Thierry, FR;
Abstract
The invention relates to glass-ceramic plates, hotplates incorporating them and their fabrication process. The glass-ceramic plate of the invention is of the type having a bottom substrate layer and a top coating layer and is characterized in that the top coating layer covers at least the external top surface of the bottom glass-ceramic layer and is a layer of a hard substrate material chosen from the group constituted by silicon carbide, silicon oxycarbide, silicon nitride, silicon oxynitride and hydrogenated amorphous carbons. The invention finds an application in the fabrication of coated glass-ceramic plates and in particular in the fabrication of glass-ceramic hotplates.