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:
Jun. 18, 1996
Filed:
Nov. 17, 1994
Applicant:
Inventor:
Ajay K Garg, Northborough, MA (US);
Assignee:
Saint-Gobain/Norton Industrial Ceramics Corp., Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D / ;
U.S. Cl.
CPC ...
51309 ; 51307 ;
Abstract
Alpha alumina abrasive grits with grain boundaries modified with at least one of yttria and a rare earth metal oxide, and one or more oxides selected from the oxides of magnesium and/or transition elements, perform at enhanced levels if at least the yttria and/or rare earth metal oxide modifiers are present within the body of the grit in concentrations at least as high as their concentrations at the surface of the grit.