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:
May. 24, 1977
Filed:
Oct. 21, 1975
Paul A Pezzoli, Midland, MI (US);
Stanley F Spangenberg, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
A method to produce a magnetic barium or strontium ferrite comprising solubilizing an alkaline earth metal compound in an aqueous solution containing about 20 to about 60 weight percent alkali metal hydroxide. The resulting solution is heated to within the range of about 90.degree. to about 130.degree. C and thereafter admixed with a sufficient amount of a soluble iron compound to form a magnetic precipitate. A crystalline, magnetic ferrite is formed by heating the precipitate to within the range of about 800.degree. to about 1500.degree. C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile