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. 01, 2009
Filed:
Jan. 22, 2004
Applicant:
Laurent Teyssedre, Paris, FR;
Inventor:
Laurent Teyssedre, Paris, FR;
Assignee:
Saint-Gobain Glass France, Courbevoie, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/087 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a gray soda-lime silicate glass composition which comprises the following coloring agents with contents varying within the following weight limits: the NiO/CoO weight ratio being between 3.5 and 6 and the glass having an overall light transmission (TL) under illuminant Dof between 20 and 60% measured for a thickness of 6 mm. The invention also relates to a glass sheet, optionally thermally toughened, obtained from the aforementioned composition and glazing comprising at least one of these sheets, especially for buildings.