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:
Feb. 01, 2000
Filed:
May. 08, 1998
Applicant:
Inventors:
John V Roberts, Newark, DE (US);
Lee Melbourne Cook, Steelville, PA (US);
David B James, Newark, DE (US);
Heinz F Reinhardt, Chadds Ford, PA (US);
Assignee:
Rodel Holdings Inc., Newark, DE (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
451 36 ; 451550 ; 451528 ; 451548 ;
Abstract
This invention provides polishing pad tiles which, by virtue of their geometry and surface features, can be arranged to form mosaic pads having channels at the seams which facilitate the flow of polishing fluid during polishing of a workpiece.