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:
Mar. 28, 2000
Filed:
Jul. 31, 1997
Applicant:
Inventors:
Assignee:
Saint-Gobain Vitrage, Courbevoie, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428213 ; 428215 ; 428216 ; 428426 ; 428428 ; 428432 ; 428433 ; 428434 ; 428469 ; 428472 ; 428689 ; 428699 ; 428701 ; 428702 ; 428913 ; 359385 ; 359389 ; 359360 ;
Abstract
A substrate having the following layers in the following order thereon; first dielectric layer, first layer with infrared reflection properties, second dielectric layer, second layer having infrared reflection properties, and third dielectric layer. The thickness of the first layer with infrared reflection properties is 50% to 64% of that of the second layer having infrared reaction properties. The optical thickness of the first dielectric layer is greater than the thickness of the third dielectric layer by at least 100%. The substrate and the layers together exhibit an external reflection color in the range of blue to blue-green at both 0.degree. and 60.degree. incidence angles.