Composite polishing pad and method for making the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9682457
SERIAL NO

14500227

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a composite polishing pad and a method for making the same. The composite polishing pad includes a cushion layer and a polishing layer. The cushion layer includes a first polymeric elastomer with a hardness of 10 to 70 shore D, and is attached to the polishing layer directly. The polishing layer includes a second polymeric elastomer with a hardness of 30 to 90 shore D, and has a polishing surface for polishing a workpiece. Whereby, the polishing layer will not peel off from the cushion layer easily, so that the polishing quality is raised.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SAN FANG CHEMICAL INDUSTRY CO LTD402 FENGJEN RD JENWU DIST KAOHSIUNG CITY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feng, Chung-Chih Kaohsiung, TW 112 308
Hung, Yung-Chang Kaohsiung, TW 45 119
Wu, Wen-Chieh Kaohsiung, TW 53 137
Yao, I-Peng Kaohsiung, TW 79 189

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 20, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 20, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00