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:
Dec. 23, 1980
Filed:
Aug. 24, 1978
Applicant:
Inventors:
James W McCauley, Wakefield, MA (US);
Normand D Corbin, Lynn, MA (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Wasington, DC (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01F / ;
U.S. Cl.
CPC ...
264 65 ; 264 66 ; 423266 ; 423385 ; 423631 ;
Abstract
A structural ceramic material comprising single phase polycrystalline cubic aluminum oxynitride preferably with at least 97% of theoretical density which displays transparency and isotropic optical, thermal and electrical properties, an infrared cutoff at about 5.2 microns wavelength, and which shows no chemical or physical property change after heating in air (atmosphere) at 1100.degree. C.