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Casimir Cwirzen
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Des Plaines, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Overvoltage protector assembly
Patent number
5,272,280
Issue date
Dec 21, 1993
Northern Telecom Limited
Michael R. Cosley
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Overvoltage protector unit for well constructions
Patent number
5,241,446
Issue date
Aug 31, 1993
Northern Telecom Limited
Michael R. Cosley
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Overload protector for telecommunications systems
Patent number
5,101,317
Issue date
Mar 31, 1992
Northern Telecom Limited
Casimir Z. Cwirzen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrically protected connector for telephone distribution frames
Patent number
4,875,868
Issue date
Oct 24, 1989
Northern Telecom Limited
Casimir Z. Cwirzen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telecommunications interface with protector modules
Patent number
4,742,541
Issue date
May 3, 1988
Northern Telecom Limited
Casimir Cwirzen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Overload protector for communications systems
Patent number
4,675,778
Issue date
Jun 23, 1987
Northern Telecom Limited
Casimir Z. Cwirzen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Three electrode gas tube protector
Patent number
4,626,955
Issue date
Dec 2, 1986
Northern Telecom Limited
Casimir Z. Cwirzen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Interface module with modular jack for telecommunications systems
Patent number
4,613,732
Issue date
Sep 23, 1986
Northern Telecom Limited
Casimir Cwirzen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Gas tube overvoltage protector with back-up gap
Patent number
4,405,967
Issue date
Sep 20, 1983
Northern Telecom Inc.
Casimir Cwirzen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Protector module base assembly with an external spark gap
Patent number
4,327,393
Issue date
Apr 27, 1982
Northern Telecom, Inc.
William W. Hines
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Connector assembly for telephone distribution equipment
Patent number
4,179,170
Issue date
Dec 18, 1979
Cook Electric Company
Frank G. Splitt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Protector module
Patent number
4,086,648
Issue date
Apr 25, 1978
Cook Electric Company
William Hines
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Protector module
Patent number
4,062,053
Issue date
Dec 6, 1977
Cook Electric Company
Casimir Cwirzen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Connector block for telephone central office main distributing frame
Patent number
3,947,732
Issue date
Mar 30, 1976
Cook Electric Company
Casimir Cwirzen
H04 - ELECTRIC COMMUNICATION TECHNIQUE