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:
Oct. 08, 1991
Filed:
Sep. 07, 1989
Applicant:
Inventors:
Cornelius Phaal, Johannesburg, Transvaal, ZA;
Nicholas Mastrantonis, Highway Gardens Ext 1, Edenvale, Transvaal, ZA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D / ;
U.S. Cl.
CPC ...
51204 ; 51307 ; 51309 ; 407118 ; 125 39 ; 76DI / ;
Abstract
An abrasive compact is provided which has a plurality of recesses which may take the form of grooves or holes formed in a major surface thereof. The recesses contain no solid material and serve as crack arrester formations.