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. 30, 1993
Filed:
Apr. 23, 1990
Applicant:
Inventors:
Kenneth Chyung, Painted Post, NY (US);
Steven B Dawes, Corning, NY (US);
Dale R Wexell, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ; B32B / ;
U.S. Cl.
CPC ...
428375 ; 428678 ;
Abstract
Silicon nitride reinforcing fibers provided with a protective surface coating comprising a boron nitride base layer and, optionally, an alumina overcoating, and fiber-reinforced ceramic matrix composite products incorporating the protectively-coated fibers, are disclosed. The composites offer significantly improved high temperature strength in combination with low dielectric constant and low dielectric loss characteristics.