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. 25, 2004
Filed:
Aug. 01, 2002
Applicant:
Inventor:
Mark Andrew Stocker, Horthampton, GB;
Assignee:
Unova U.K. Limited, , GB;
Primary Examiner:
Int. Cl.
CPC ...
B24B 1/00 ;
U.S. Cl.
CPC ...
B24B 1/00 ;
Abstract
A grinding pin ( ) for grinding notches in the edges of disc workpieces, such as semi-conductor wafers, comprises a metal spindle ( ) for mounting in a grinding machine, and an adjoining cylindrical region having axially spaced sections of fine grit ( ) and rough grit ( ), the latter being axially nearer the spindle ( ). In use on a grinding machine having a rotatable forming wheel, similar profiled notch-grinding grooves ( ) and ( ) are formed by the wheel in the grinding sections ( ) and ( ) respectively.
Stocker, Mark. (2004). Grinding pin for grinding machines comprising resin bonded selections of rough grit and fine grit (U.S. Patent No. 6739954). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6739954
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile