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:
Jul. 28, 1981
Filed:
Jun. 15, 1978
Applicant:
Inventors:
J Thomas Smith, Acton, MA (US);
Carr L Quackenbush, Lexington, MA (US);
F Joseph Reid, Acton, MA (US);
Assignee:
GTE Laboratories, Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106 732 ; 156735 ;
Abstract
Polycrystalline ceramic bodies of Si.sub.3 N.sub.4 when prepared to obtain an intergranular phase which is substantially crystalline, exhibits significantly improved mechanical strength at elevated temperatures above 1,000.degree. C. up to 1600.degree. C. over bodies having glass-containing intergranular phases.
Quick Actions:
Smith, J. (1981). S13n4 having high temperature strength and method (U.S. Patent No. 4280850). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4280850
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile