90/012,154MULTI-STEP POLISHING SOLUTION FOR CHEMICAL MECHANICAL PLANARIZATION6,971,945Closed

Status

Reexamination Certificate Issued

Filed

Feb 20, 2012

Last Updated

Jul 25, 2013

Art Unit

3991

Requester

Unknown

Requested By

Third Party

Sector (CPC)

CChemistry & Materials
C23Surface Treatment
C23FSurface Etching

USPC

451Abrading

Reexam History (19 events)

Jul 25, 2013REEXInput Issue Number and Issue Date for Reexamination
Jun 26, 2013RXPUBSReexam Forwarded to Office of Publications
Jun 20, 2013MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
Jan 9, 2013RXFWDXDate Forwarded to Examiner
Jul 18, 2012DOCKCase Docketed to Examiner in GAU
May 22, 2012RXFWDXDate Forwarded to Examiner
Apr 17, 2012NRX.Notice of Reexam Published in Official Gazette
Mar 15, 2012DOCKCase Docketed to Examiner in GAU
Mar 9, 2012MRXNReexamination Formalities Notice Mailed
Mar 9, 2012MRXNReexamination Formalities Notice Mailed
Mar 8, 2012RXNREQAUNotice of assignment of reexamination request
Mar 8, 2012RXLITSRReexam Litigation Search Conducted
Mar 8, 2012RXNREQFDNotice of reexamination request filing date
Mar 8, 2012RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Mar 8, 2012RXTTLRPTTitle Report
Feb 20, 2012RXOSUB.RReexamination requested by third party requester
Feb 20, 2012RXOSUBReceipt of Original Ex Parte Reexam Request
Feb 20, 2012RXIDS.Information Disclosure Statement Filed
Feb 20, 2012RXC/SRCertificate of Service

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

None found

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

Grant
Dec 6, 2005
3.5-yr
Jun 6, 2009
7.5-yr
Jun 6, 2013
11.5-yr
Jun 6, 2017
Expiry
Apr 27, 2024

Entity Status

Large Entity

Expires

Apr 27, 2024 (expired)

Term Adjustment

+64 days (~0.2 yr)

Other

USPTO Event: Expire Patent

Assignments

Mar 2004Apr 2004May 2004FiledZHENDONG LIUROBERT E. SCHMIDTTERENCE M. THOMASJOHN QUANCIROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS, INC.
AssignmentReel/Frame: 014888/0517Recorded: Jul 22, 2004

From

ZHENDONG LIUInventor
May 25, 2004
JOHN QUANCIInventor
May 26, 2004
ROBERT E. SCHMIDTInventor
May 25, 2004
TERENCE M. THOMASInventor
May 25, 2004

To

ROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS, INC.