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UNITED STATES DISTRICT COURT

FOR THE EASTERN DISTRICT OF TEXAS

MARSHALL DIVISION

COBBLESTONE WIRELESS, LLC,

Plaintiff,

v.

CELLCO PARTNERSHIP D/B/A VERIZON 

WIRELESS

Defendants.

COBBLESTONE WIRELESS, LLC,

Plaintiff,

v.

AT&T SERVICES INC.; et al.

COBBLESTONE WIRELESS, LLC,

Plaintiff,

T-MOBILE USA, INC.

Case No. 2:23-cv-00382-JRG-RSP

(Lead Case) 

JURY TRIAL DEMANDED 

Case No. 2:23-cv-00380-JRG-RSP 

(Member Case) 

JURY TRIAL DEMANDED 

Case No. 2:23-cv-00381-JRG-RSP 

(Member Case) 

JURY TRIAL DEMANDED

COBBLESTONE’S UNOPPOSED MOTION FOR EXTENSION OF TIME TO SERVE 

INFRINGEMENT AND INVALIDITY CONTENTIONS

Plaintiff Cobblestone Wireless, LLC (“Cobblestone or Plaintiff”), files this Unopposed 

Motion for Extension of Time to Serve Infringement and Invalidity Contentions.

The current deadline for Cobblestone to serve contentions pursuant to P.R. 3-1 & 3.2 is 

December 4, 2023. The current deadline for Defendants AT&T Mobility LLC, AT&T Services, 

Inc., AT&T Corp. (“AT&T”), Cellco Partnership d/b/a Verizon Wireless (“Verizon”), and TMobile USA, Inc., (“T-Mobile”) (collectively, the “Defendants”) to serve contentions pursuant to 

Case 2:23-cv-00382-JRG-RSP Document 47 Filed 12/04/23 Page 1 of 4 PageID #: 201
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P.R. 3-3 & 3-4 is January 29, 2024. Cobblestone has been diligently preparing its materials and 

respectfully requests a brief extension of time in order to continue preparing its materials. This 

extension is not sought for prejudice or delay, but for good cause and so that justice may be served. 

Counsel for Cobblestone met and conferred with counsel for Defendants and counsel for 

Defendants indicated that Defendants are unopposed to the relief sought in this Motion. 

Accordingly, Cobblestone respectfully requests that the Court extend the deadline for 

Cobblestone to serve contentions pursuant to P.R. 3-1 & 3.2 to December 11, 2023 and the deadline 

for Defendants to serve contentions pursuant to P.R. 3-3 & 3-4 to February 5, 2024. 

Dated: December 4, 2023 Respectfully submitted,

/s/ Reza Mirzaie 

Reza Mirzaie

CA State Bar No. 246953

Marc A. Fenster

CA State Bar No. 181067

Neil A. Rubin

CA State Bar No. 250761

Christian W. Conkle

CA State Bar No. 306374

Amy E. Hayden 

CA State Bar No. 287026

Jonathan Ma

CA State Bar No. 312773

Jacob R. Buczko

CA State Bar No. 269408

Peter Tong

TX State Bar No. 24119042

Matthew D. Aichele

VA State Bar No. 77821

RUSS AUGUST & KABAT

12424 Wilshire Boulevard, 12th Floor

Los Angeles, CA 90025

Telephone: 310-826-7474

Email: rmirzaie@raklaw.com

Email: mfenster@raklaw.com

Email: nrubin@raklaw.com

Case 2:23-cv-00382-JRG-RSP Document 47 Filed 12/04/23 Page 2 of 4 PageID #: 202
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Email: cconkle@raklaw.com

Email: ahayden@raklaw.com

Email: jma@raklaw.com

Email: jbuczko@raklaw.com

Email: ptong@raklaw.com

Email: maichele@raklaw.com

ATTORNEYS FOR PLAINTIFF,

COBBLESTONE WIRELESS, LLC

Case 2:23-cv-00382-JRG-RSP Document 47 Filed 12/04/23 Page 3 of 4 PageID #: 203
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CERTIFICATE OF CONFERENCE

The undersigned hereby certifies that counsel for Cobblestone met and conferred with counsel 

for Defendant regarding the substance of this Motion. Counsel for Defendant indicated that Defendant 

is unopposed to the relief sought in this Motion. 

/s/ Reza Mirzaie

CERTIFICATE OF SERVICE

The undersigned hereby certifies that all counsel of record who are deemed to have consented 

to electronic service are being served with a true and correct copy of the foregoing document via the 

Court’s CM/ECF system per Local Rule CV-5(a)(3) on December 4, 2023. 

/s/ Reza Mirzaie 

Case 2:23-cv-00382-JRG-RSP Document 47 Filed 12/04/23 Page 4 of 4 PageID #: 204