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:
Nov. 14, 1979
David Moskowitz, Southfield, MI (US);
Leslie L Terner, W. Bloomfield, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A method of making Si.sub.3 N.sub.4 based cutting tools (and the resulting product) is disclosed. A mixture is formed of three powders: a first powder of at least 75% crystalline Si.sub.3 N.sub.4, a second powder selected from the group Y.sub.2 O.sub.3, MgO, CeO.sub.2 and ZrO.sub.2, and a third powder selected from the group consisting of Al.sub.2 O.sub.3, WC, Wsi.sub.2, W and TiC. The mixture is cold pressed to a density of 50-70% of theoretical and then sintered to full density without the application of pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile