90/019,687PISTON RING11,408,508Closed

Status

Reexamination Certificate Issued

Filed

Sep 30, 2024

Last Updated

Dec 15, 2025

Art Unit

3991

Requester

Unknown

Requested By

Third Party

Patent OwnerInferred

Federal-Mogul Burscheid GmbH

Sector (CPC)

FMechanical Engineering
F16Machine Elements
F16JPistons & Cylinders

USPC

428Stock Material Or Miscellaneous Articles

Reexam History (38 events)

Dec 15, 2025REEXInput Issue Number and Issue Date for Reexamination
Nov 11, 2025RXPUBSReexam Forwarded to Office of Publications
Oct 8, 2025MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
Sep 26, 2025RXC/SRCertificate of Service
Sep 26, 2025RXAAF.Response to Final Filed (or Ready for Examiner Action)
Sep 25, 2025MRADVRX - Mail Reexam - Advisory Action (or Supplemental)
Sep 17, 2025IDSCInformation Disclosure Statement considered
Sep 16, 2025WIDSInformation Disclosure Statement (IDS) Filed
Sep 16, 2025RXLITSRReexam Litigation Search Conducted
Sep 16, 2025RXIDS.Information Disclosure Statement Filed
Sep 11, 2025RXSAFRSupplemental Amendment after Final Rejection
Sep 11, 2025RXC/SRCertificate of Service
Sep 11, 2025RXAAF.Response to Final Filed (or Ready for Examiner Action)
Aug 29, 2025RXLET.Miscellaneous Incoming Letter
Aug 29, 2025MREXNRX - Mail Examiner Interview Summary Record
Jul 11, 2025MRXFRRX - Mail Final Rejection
Jun 2, 2025RXC/SRCertificate of Service
Jun 2, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Jun 2, 2025RXA...Response after Non-Final Action
Mar 31, 2025MR.NFRX - Mail Reexam Non-Final Action
Jan 14, 2025RXFWDXDate Forwarded to Examiner
Nov 13, 2024MREXORX - Mail Ex Parte Request for Reexamination Granted
Oct 17, 2024RXLITSRReexam Litigation Search Conducted
Oct 9, 2024MRPWPRX - Mail Pilot Waiver Program - Ex Parte Interview Summary
Oct 3, 2024MRXNReexamination Formalities Notice Mailed
Oct 3, 2024MRXNReexamination Formalities Notice Mailed
Oct 3, 2024DOCKCase Docketed to Examiner in GAU
Oct 3, 2024COMPApplication Is Now Complete
Oct 2, 2024RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Oct 2, 2024RXNREQFDNotice of reexamination request filing date
Oct 2, 2024RXNREQAUNotice of assignment of reexamination request
Oct 1, 2024RXTTLRPTTitle Report
Oct 1, 2024PRXRParalegal Reexam Review Complete
Oct 1, 2024FTFSFITF set to YES - revise initial setting
Sep 30, 2024RXOSUB.RReexamination requested by third party requester
Sep 30, 2024RXOSUBReceipt of Original Ex Parte Reexam Request
Sep 30, 2024RXO_40.RReceipt of Orig. Ex Parte Request by Third Party Less Than 40 Pages - Rule 1.20(c )(1)
Sep 30, 2024BIG.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
Aug 9, 2022
3.5-yr
Feb 9, 2026
Paid Jan 21, 2026
7.5-yr
Feb 9, 2030
11.5-yr
Feb 9, 2034
Expiry
Jun 30, 2040

Entity Status

Large Entity

Expires

Jun 30, 2040 (14.3 yr remaining)

Term Adjustment

+32 days (~0.1 yr)

Assignments

Apr 2020May 2020FiledRALF LAMMERSRUDOLF LINDESTEFFEN HOPPEWALTER STUMPFFEDERAL-MOGUL BURSCHEID GMBH
AssignmentReel/Frame: 052793/0177Recorded: May 29, 2020

From

STEFFEN HOPPEInventor
May 4, 2020
RALF LAMMERSInventor
Mar 23, 2020
RUDOLF LINDEInventor
Mar 26, 2020
WALTER STUMPFInventor
May 7, 2020

To

FEDERAL-MOGUL BURSCHEID GMBH