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:
Apr. 13, 1976
Filed:
Nov. 05, 1973
Applicant:
Inventors:
Irwin M Lachman, Corning, NY (US);
Rodney D Bagley, Big Flats, NY (US);
Assignee:
Corning Glass Works, Corning, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106 / ; 106 62 ;
Abstract
Coarse porosity is imposed in fired ceramic bodies containing cordierite (2MgO.2Al.sub.2 O.sub.3.5SiO.sub.2) primary phase by substituting pyrophillite, kyanite, quartz, or fused silica in the batch composition in place of the usual raw talc or clay or a portion thereof.