4-TEL
Filed: July 17, 1980
Computer-Controlled Diagnostic Systems for Testing and Analyzing Telephone Lines Comprising Electronic Line Testing, Cathode…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 73270458
MITS
Filed: June 16, 1988
INTEGRATED TELEPHONE LINE TESTING SYSTEMS CONSISTING OF LINE TESTS, CONTROLLERS, CONTROL TERMINALS, PRINTERS AND DISC DRIVES…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 73734688
TOLLGRADE
Filed: March 31, 1994
telecommunications line equipment, namely channel units which plug-in to emulate cable and which convert, link and/or transport…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 74507225
TEAM TOLLGRADE
Filed: March 31, 1994
training in the use of telecommunications products
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 74507376
TEAM TOLLGRADE
Filed: March 31, 1994
training in the use of telecommunications products
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 74507475
MCU
Filed: March 31, 1994
telecommunications line equipment, namely channel units which plug-in to emulate cable and which convert, link and/or transport…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 74507604
TOLLGRADE
Filed: March 31, 1994
telecommunications line equipment, namely channel units which plug-in to emulate cable and which convert, link and/or transport…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 74507608
CHEETAH
Filed: March 23, 1995
electrical and scientific apparatus for use with broadband network to test performance, monitor status and manage broadband…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 74650432
MICRO-BANK
Filed: July 7, 1995
telecommunications line equipment, namely channel banks which interface with digital communications networks in connection…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 74698172
LIGHTHOUSE
Filed: May 16, 1997
cable status monitoring apparatus for monitoring the status of cable television cable
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 75292989
TELACCORD
Filed: September 30, 1997
test apparatus for telephone systems, namely, locally non-switched two-wire circuits, unbundled loops, direct current alarms…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 75365885
TOLLGRADE
Filed: April 5, 2000
training in the use of telecommunications and cable television products
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 76018939
LIGHTHOUSE
Cable status and performance monitoring apparatus, namely, controllers and transponders for use in monitoring the status…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 76018947
TOLLGRADE
Filed: April 5, 2000
House mark for electronic products in the telecommunications and cable television industries
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 76018948
AMULET
apparatus for testing communications networks, namely, a measurement unit for measuring analog and digital signals of copper…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 76410700
CELERITY
Filed: November 18, 2002
Computer software for testing or qualifying high speed lines in a communications network
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 76467731
4TEL
Filed: May 13, 2004
diagnostic system, namely, [ computer hardware and ] software for testing and analyzing lines in communication networks
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 76592111
HYFI
Broadband wireless internet access point
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 77208421
NETFLARE
COMPUTER SOFTWARE FOR TESTING, DIAGNOSING, ANALYZING, OR CHARACTERIZING A DATA NETWORK
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 78401696
MICRO-BANK
Telecommunications line equipment, namely channel banks which interface with digital communications networks in connection…
Owned by: TOLLGRADE COMMUNICATIONS, INC.
Serial Number: 78815358
