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:
Nov. 24, 1992
Filed:
Oct. 18, 1990
Applicant:
Inventors:
Claudette Drouet, Juillan, FR;
Yves Laurent, Cesson Sevigne, FR;
Erik Mennessier, Tarbes, FR;
Laurence Poquillon, Rennes, FR;
Patrick Verdier, Acigne, FR;
Assignee:
Ceramiques et Composites, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501-9 ; 501 68 ; 501 69 ; 501 92 ; 501 95 ; 501 96 ; 501 97 ; 501 98 ; 501 32 ; 65 33 ;
Abstract
Glass compositions containing oxygen and nitrogen prepared by melting admixture of magnesia and/or a magnesium silicate, silica and an aluminum nitride produced by reacting ammonia with aluminum oxide, have the formula: