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Status

Reexamination Certificate Issued

Filed

May 29, 2024

Last Updated

Jan 15, 2026

Art Unit

3992

Requester Law Firm

Kirkland & Ellis, LLP

Requested By

Third Party

Patent OwnerInferred

Estelgia LLC

P.O. Law Firm

Charles H. Sanders

Sector (CPC)

HElectrical & Electronic
H04Telecommunications
H04LTransmission of Digital Information

USPC

370Multiplex Communications

Reexam History (49 events)

Jan 15, 2026REEXInput Issue Number and Issue Date for Reexamination
Dec 8, 2025RXPUBSReexam Forwarded to Office of Publications
Dec 6, 2025RXTTLRPTTitle Report
Nov 17, 2025MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
Oct 28, 2025IDSCInformation Disclosure Statement considered
Oct 15, 2025MREXNRX - Mail Examiner Interview Summary Record
Oct 14, 2025WIDSInformation Disclosure Statement (IDS) Filed
Oct 14, 2025RXAAF.Response to Final Filed (or Ready for Examiner Action)
Oct 14, 2025RXIDS.Information Disclosure Statement Filed
Oct 14, 2025RXC/SRCertificate of Service
Sep 12, 2025MRXD.RX - Mail Extension of Time Period for Response Denied
Sep 11, 2025RXC/SRCertificate of Service
Sep 11, 2025RXRQ/TRequest for Extension of Time
Aug 14, 2025MRXFRRX - Mail Final Rejection
Aug 7, 2025IDSCInformation Disclosure Statement considered
Jul 18, 2025RXLET.Miscellaneous Incoming Letter
Jul 3, 2025MREXNRX - Mail Examiner Interview Summary Record
Jun 23, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Jun 23, 2025RXIDS.Information Disclosure Statement Filed
Jun 23, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jun 23, 2025RXC/SRCertificate of Service
Jun 23, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Jun 23, 2025RXA...Response after Non-Final Action
May 22, 2025RXC/SRCertificate of Service
May 22, 2025RXLET.Miscellaneous Incoming Letter
May 9, 2025MRXG.RX - Mail Extension of Time Period for Response Granted
May 8, 2025PA..Change in Power of Attorney (May Include Associate POA)
May 6, 2025RXRQ/TRequest for Extension of Time
May 6, 2025RXC/SRCertificate of Service
Mar 25, 2025MR.NFRX - Mail Reexam Non-Final Action
Dec 10, 2024RXFWDXDate Forwarded to Examiner
Aug 22, 2024MREXORX - Mail Ex Parte Request for Reexamination Granted
Jun 6, 2024MRXNReexamination Formalities Notice Mailed
Jun 6, 2024COMPApplication Is Now Complete
Jun 6, 2024MRXNReexamination Formalities Notice Mailed
Jun 5, 2024RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Jun 5, 2024RXNREQAUNotice of assignment of reexamination request
Jun 5, 2024DOCKCase Docketed to Examiner in GAU
Jun 5, 2024FTFIFITF set to NO - revise initial setting
Jun 5, 2024RXNREQFDNotice of reexamination request filing date
May 29, 2024RXTTLRPTTitle Report
May 28, 2024RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
May 28, 2024RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
May 28, 2024BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
May 28, 2024RXOSUB.RReexamination requested by third party requester
May 28, 2024RXOSUBReceipt of Original Ex Parte Reexam Request
May 28, 2024RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
May 28, 2024RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
May 28, 2024RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester