90/019,711COMMUNICATION SYSTEM8,576,803Closed

Status

Reexamination Certificate Issued

Filed

Oct 25, 2024

Last Updated

Apr 21, 2026

Art Unit

3992

Requester Law Firm

Not named in the record

Requested By

Third Party

Sector (CPC)

HElectrical & Electronic
H04Telecommunications
H04WWireless Communication Networks

USPC

370Multiplex Communications

Reexam History (50 events)

Apr 21, 2026REEXInput Issue Number and Issue Date for Reexamination
Apr 5, 2026RXPUBSReexam Forwarded to Office of Publications
Nov 25, 2025MRNRCRX - Mail Notice of Intent to Issue a Reexam Certificate
Nov 19, 2025IDSCInformation Disclosure Statement considered
Oct 6, 2025WIDSInformation Disclosure Statement (IDS) Filed
Oct 6, 2025RXIDS.Information Disclosure Statement Filed
Oct 6, 2025RXC/SRCertificate of Service
Oct 6, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Oct 6, 2025RXA...Response after Non-Final Action
Sep 24, 2025MREXNRX - Mail Examiner Interview Summary Record
Aug 6, 2025MR.NFRX - Mail Reexam Non-Final Action
Jul 24, 2025IDSCInformation Disclosure Statement considered
Jul 24, 2025IDSCInformation Disclosure Statement considered
Jun 3, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jun 3, 2025WIDSInformation Disclosure Statement (IDS) Filed
Jun 3, 2025RXIDS.Information Disclosure Statement Filed
Jun 3, 2025RXC/SRCertificate of Service
Jun 3, 2025RXAF/DAffidavit(s), Declaration(s) and/or Exhibit(s) Filed
Jun 3, 2025RXA...Response after Non-Final Action
May 29, 2025MREXNRX - Mail Examiner Interview Summary Record
May 14, 2025PA..Change in Power of Attorney (May Include Associate POA)
May 13, 2025RXPA..Change in Power of Attorney (May Include Associate POA)
May 13, 2025RXC.ADCorrespondence Address Change
Apr 22, 2025MRXG.RX - Mail Extension of Time Period for Response Granted
Apr 14, 2025RXRQ/TRequest for Extension of Time
Apr 14, 2025RXC/SRCertificate of Service
Apr 7, 2025MRXD.RX - Mail Extension of Time Period for Response Denied
Apr 4, 2025RXRQ/TRequest for Extension of Time
Mar 3, 2025MR.NFRX - Mail Reexam Non-Final Action
Jan 22, 2025RXFWDXDate Forwarded to Examiner
Nov 20, 2024MREXORX - Mail Ex Parte Request for Reexamination Granted
Nov 14, 2024IDSCInformation Disclosure Statement considered
Nov 12, 2024MRPWPRX - Mail Pilot Waiver Program - Ex Parte Interview Summary
Nov 6, 2024DOCKCase Docketed to Examiner in GAU
Nov 5, 2024MRXNReexamination Formalities Notice Mailed
Nov 5, 2024MRXNReexamination Formalities Notice Mailed
Nov 5, 2024COMPApplication Is Now Complete
Nov 4, 2024RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Nov 4, 2024RXNREQFDNotice of reexamination request filing date
Nov 4, 2024RXNREQAUNotice of assignment of reexamination request
Nov 4, 2024PRXRParalegal Reexam Review Complete
Nov 4, 2024FTFIFITF set to NO - revise initial setting
Oct 25, 2024WIDSInformation Disclosure Statement (IDS) Filed
Oct 25, 2024RXTTLRPTTitle Report
Oct 25, 2024RXRLFReExam Litigation Found
Oct 25, 2024RXOSUB.RReexamination requested by third party requester
Oct 25, 2024RXOSUBReceipt of Original Ex Parte Reexam Request
Oct 25, 2024RXLITSRReexam Litigation Search Conducted
Oct 25, 2024RXC/SRCertificate of Service
Oct 25, 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
Nov 5, 2013
3.5-yr
May 5, 2017
7.5-yr
May 5, 2021
Paid Oct 4, 2021
11.5-yr
May 5, 2025
Paid Apr 21, 2025
Expiry
Jun 29, 2030

Entity Status

Large Entity

Expires

Jun 29, 2030 (4.3 yr remaining)

Term Adjustment

+222 days (~0.6 yr)

Other

USPTO Event: Maintenance Fee Reminder Mailed

Assignments

2010201120122013201420152016201720182019202020212022FiledTOYOHISA TANAKAMITSUBISHI ELECTRIC CORPORATIONDAINGEAN TECHNOLOGIES LIMITED
AssignmentReel/Frame: 023543/0265Recorded: Nov 19, 2009

From

TOYOHISA TANAKAInventor
Nov 11, 2009
→

To

MITSUBISHI ELECTRIC CORPORATION

AssignmentReel/Frame: 063073/0962Recorded: Mar 23, 2023

From

MITSUBISHI ELECTRIC CORPORATION
Aug 23, 2022
→

To

DAINGEAN TECHNOLOGIES LIMITED