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. 14, 2002
Filed:
Sep. 20, 2000
Applicant:
Inventors:
John V. H. Roberts, Newark, DE (US);
Barry Scott Pinheiro, Media, PA (US);
David B. James, Newark, DE (US);
Assignee:
Rodel Holdings Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/00 ;
U.S. Cl.
CPC ...
B29B 7/00 ;
Abstract
A polishing pad is formed by solidifying a flowable polymeric material at different rates of cooling to provide a polishing pad with a transparent region and an adjacent opaque region. Types of polymeric material suitable for making the polishing pad include a single thermoplastic material, a blend of thermoplastic materials, and a reactive thermosetting polymer.