Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Reexamination Certificate
2005-09-13
2005-09-13
Jones, Deborah (Department: 1775)
Stock material or miscellaneous articles
Self-sustaining carbon mass or layer with impregnant or...
C428S698000, C428S701000, C428S702000, C428S704000, C428S446000, C428S336000, C428S216000, C219S443100
Reexamination Certificate
active
06942920
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.
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Carre Alain R. E.
Guermeur Celine C.
Semjen Marianne
Blackwell-Rudasill G.
Chen Siwen
Eurokera
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