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:
Jan. 20, 1981
Filed:
Aug. 08, 1979
Applicant:
Inventors:
Patrick K Gallagher, Basking Ridge, NJ (US);
Ernst M Gyorgy, Madison, NJ (US);
David W Johnson, Jr, Pluckemin, NJ (US);
Murray Robbins, Berkeley Heights, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
252 6257 ; 252 6259 ; 252 6262 ;
Abstract
Desirable properties of manganese zinc ferrites are obtained without the need for controlling or changing the oxygen partial pressure during the sintering and cooling steps by adding a small amount of germanium or gallium to the ferrite and using an atmosphere, such as air, during the sintering and cooling steps, that has at least 1 percent oxygen by volume.
Gallagher, Patrick. (1981). Method of making mnzn ferrites (U.S. Patent No. 4246128). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4246128
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile