90/014,100Shoulder Durability Enhancement for a PDC Drill Bit Using Secondary and Tertiary Cutting Elements8,544,568Closed
Status
Reexamination Certificate Issued
Requester (Patent Owner)(via USPTO assignment records)
Requested By
Patent Owner
Patent Owner Law Firm
Reexam History (39 events)
Apr 3, 2019CCRDYApplication ready for PDX access by participating foreign offices
Apr 2, 2019REEXInput Issue Number and Issue Date for Reexamination
Mar 20, 2019RXPUBSReexam Forwarded to Office of Publications
Mar 15, 2019MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
Mar 7, 2019RXLITSRReexam Litigation Search Conducted
Mar 7, 2019RXFWDXDate Forwarded to Examiner
Feb 1, 2019MAPDRMail PTAB Decision on Appeal - Reversed
Jan 31, 2019APDRPTAB Decision - Examiner Reversed
Dec 21, 2018APASAssignment of Appeal Number
Dec 21, 2018AP_DK_MDocketing Notice Mailed to Appellant
Dec 12, 2018APWDAppeal Awaiting PTAB Docketing
Dec 8, 2018RXBPAIReexam Forwarded to PTAB
Sep 7, 2018MRAEARX - Mail Examiners Answer
Aug 10, 2018RXAP.BAppeal Brief Filed
Aug 9, 2018RXN/APNotice of Appeal Filed
Jul 25, 2018MRADVRX - Mail Reexam - Advisory Action (or Supplemental)
Jul 25, 2018MRADVRX - Mail Reexam - Advisory Action (or Supplemental)
Jul 13, 2018RXAAF.Response to Final Filed (or Ready for Examiner Action)
Jun 28, 2018MRXFRRX - Mail Final Rejection
Jun 18, 2018RXA...Response after Non-Final Action
May 30, 2018MR.NFRX - Mail Reexam Non-Final Action
May 4, 2018RXFWDXDate Forwarded to Examiner
May 1, 2018RXLET.Miscellaneous Incoming Letter
May 1, 2018NRX.Notice of Reexam Published in Official Gazette
Mar 19, 2018MREXORX - Mail Ex Parte Request for Reexamination Granted
Mar 13, 2018MRPWPRX - Mail Pilot Waiver Program - Ex Parte Interview Summary
Mar 13, 2018IDSCInformation Disclosure Statement considered
Mar 7, 2018RXLITSRReexam Litigation Search Conducted
Mar 6, 2018MRXNReexamination Formalities Notice Mailed
Mar 6, 2018MRXNReexamination Formalities Notice Mailed
Mar 5, 2018RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Mar 5, 2018FTFIFITF set to NO - revise initial setting
Mar 5, 2018DOCKCase Docketed to Examiner in GAU
Mar 2, 2018WIDSInformation Disclosure Statement (IDS) Filed
Mar 2, 2018RXWVSTWaiver of owners statement in ex parte
Mar 2, 2018RXOSUBReceipt of Original Ex Parte Reexam Request
Mar 2, 2018RXIDS.Information Disclosure Statement Filed
Mar 2, 2018RXA.PEPre-Examination Amendment
Mar 2, 2018BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
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
Oct 1, 2013
3.5-yr
Apr 1, 2017
7.5-yr
Apr 1, 2021
11.5-yr
Apr 1, 2025
Expiry
Dec 9, 2031
Entity Status
Large Entity
Expires
Dec 9, 2031 (5.7 yr remaining)
Term Adjustment
+368 days (~1.0 yr)
Other
USPTO Event: Expire PatentUSPTO Event: Maintenance Fee Reminder Mailed
Assignments
AssignmentReel/Frame: 025456/0125Recorded: Dec 6, 2010
From
CARY ANDREW MAURSTADInventor
Dec 2, 2010
ZANE MICHAEL PETTIETInventor
Dec 2, 2010
→
To
VAREL INTERNATIONAL, IND., L.P.
OtherReel/Frame: 026151/0403Recorded: Apr 19, 2011
From
VAREL INTERNATIONAL IND., L.P.
Apr 8, 2011
→
To
DRILLBIT WCF LIMITED
OtherReel/Frame: 026970/0678Recorded: Sep 26, 2011
From
VAREL INTERNATIONAL IND., L.P.
Aug 30, 2011
→
To
DRILLBIT WCF II LIMITED
ReleaseReel/Frame: 027787/0370Recorded: Feb 8, 2012
From
DRILLBIT WCF II LIMITED
Jan 31, 2012
→
To
VAREL INTERNATIONAL IND., L.P.
OtherReel/Frame: 029731/0721Recorded: Jan 31, 2013
From
VAREL INTERNATIONAL ENERGY FUNDING CORP.
Jan 15, 2013
→
To
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
OtherReel/Frame: 029682/0024Recorded: Jan 23, 2013
From
VAREL INTERNATIONAL IND., L.P.
Jan 15, 2013
→
To
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
ReleaseReel/Frame: 033083/0969Recorded: Jun 4, 2014
From
CREDIT SUISSE AG, CAYMAN ISLAND BRANCH
May 21, 2014
→
To
VAREL INTERNATIONAL IND., L.P
Security InterestReel/Frame: 053090/0860Recorded: Jun 30, 2020
From
VAREL INTERNATIONAL IND., LLC
Jun 30, 2020
→
To
INVESTEC BANK PLC