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. 14, 2002
Filed:
Dec. 21, 1999
Applicant:
Inventors:
Assignee:
Saint-Gobain Vitrage, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/500 ; B32B 1/706 ;
U.S. Cl.
CPC ...
B32B 1/500 ; B32B 1/706 ;
Abstract
A transparent substrate according to the invention, especially made of glass, provided on at least one of its faces with an antireflection coating, which includes a single thin layer formed from at least two materials of different refractive index, the composition of which thin layer varies continously through its thickness e.