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Patent Assignment Details

NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:	005249/0679			Pages:	32
		Recorded:	11/21/1989
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 34

Patent #:	3654404	Issue Dt:		Application #:	05024496	Filing Dt:
Title:

Patent #:	3711767	Issue Dt:		Application #:	05085617	Filing Dt:
Title:

Patent #:	3691311	Issue Dt:	09/12/1972	Application #:	05096685	Filing Dt:	12/10/1970
Title:	TELEPHONE USER SET

Patent #:	3786200	Issue Dt:	01/15/1974	Application #:	05254059	Filing Dt:	05/17/1972
Title:	AMPLIFIER FOR USE IN COMMUNICATION SYSTEMS

Patent #:	3846589	Issue Dt:	11/05/1974	Application #:	05259222	Filing Dt:	06/02/1972
Title:	TELEPHONE TRUNK SIGNALING LINK CIRCUIT

Patent #:	3798541	Issue Dt:		Application #:	05266367	Filing Dt:
Title:

Patent #:	3944743	Issue Dt:	03/16/1976	Application #:	05431173	Filing Dt:	01/07/1974
Title:	METHOD AND APPARATUS FOR FEEDBACK SUPPRESSION

Patent #:	3955051	Issue Dt:		Application #:	05541783	Filing Dt:
Title:

Patent #:	4024346	Issue Dt:		Application #:	05621422	Filing Dt:
Title:

Patent #:	4220834	Issue Dt:	09/02/1980	Application #:	05739980	Filing Dt:	11/08/1976
Title:	TELEPHONE LINE ATTENUATOR NETWORK AND ATTENUATOR PAD THEREFOR

Patent #:	4210777	Issue Dt:	07/01/1980	Application #:	05915725	Filing Dt:	06/15/1978
Title:	PSEUDO-TRANSPARENT STOP BIT GENERATOR

Patent #:	4355403	Issue Dt:	10/19/1982	Application #:	06044652	Filing Dt:	06/01/1979
Title:	TELETYPEWRITER LINE KEYER WITH SWITCHING CURRENT REGULATOR

Patent #:	4272141	Issue Dt:	06/09/1981	Application #:	06047633	Filing Dt:	06/11/1979
Title:	ELECTRONIC CARD CAGE INTERFACING ASSEMBLY

Patent #:	4425616	Issue Dt:	01/10/1984	Application #:	06091765	Filing Dt:	11/06/1979
Title:	HIGH-SPEED TIME SHARE PROCESSOR

Patent #:	4288658	Issue Dt:	09/08/1981	Application #:	06091793	Filing Dt:	11/06/1979
Title:	APPARATUS FOR GENERATING TELEX SIGNALING SEQUENCES IN A DISTRIBUTED PROCESSING TELEX EXCHANGE

Patent #:	4292465	Issue Dt:	09/29/1981	Application #:	06092066	Filing Dt:	11/06/1979
Title:	DISTRIBUTED PROCESSING TELEX EXCHANGE

Patent #:	4291196	Issue Dt:	09/22/1981	Application #:	06092424	Filing Dt:	11/06/1979
Title:	CIRCUIT FOR HANDLING CONVERSATION DATA IN A DISTRIBUTED PROCESSING TELEX EXCHANGE

Patent #:	4317209	Issue Dt:	02/23/1982	Application #:	06100057	Filing Dt:	12/04/1979
Title:	FSK TONE GENERATOR CIRCUIT

Patent #:	4314103	Issue Dt:	02/02/1982	Application #:	06151295	Filing Dt:	05/19/1980
Title:	TELEPHONE ANSWERING SYSTEM WITH SIMULATED DIAL TONE DISCONNECT PROTECTION

Patent #:	4335281	Issue Dt:	06/15/1982	Application #:	06162634	Filing Dt:	06/24/1980
Title:	POST-AURICLE CONTOURED HEADSET FOR A TWO-WAY VOICE COMMUNICATION

Patent #:	4534614	Issue Dt:	08/13/1985	Application #:	06165070	Filing Dt:	07/01/1980
Title:	ASPHERICAL LENS FOR CONCENTRATING DIFFUSE OPTICAL RADIATION

Patent #:	4354160	Issue Dt:	10/12/1982	Application #:	06165072	Filing Dt:	07/01/1980
Title:	AMPLITUDE EQUALIZER

Patent #:	4418318	Issue Dt:	11/29/1983	Application #:	06242245	Filing Dt:	03/10/1981
Title:	DIGITAL PHASE-LOCKED LOOP CIRCUIT

Patent #:	4404636	Issue Dt:	09/13/1983	Application #:	06252260	Filing Dt:	04/08/1981
Title:	PHASOR IMPEDANCE MEASURING TEST SET

Patent #:	4536888	Issue Dt:	08/20/1985	Application #:	06295220	Filing Dt:	08/21/1981
Title:	VOICE COMMUNICATION INSTRUMENT SYSTEM WITH LINE-POWERED RECEIVER CONDITIONING CIRCUIT

Patent #:	4543665	Issue Dt:	09/24/1985	Application #:	06397882	Filing Dt:	07/13/1982
Title:	SPEAKERPHONE WITH WIRELESS INFRARED MICROPHONE

Patent #:	4617431	Issue Dt:	10/14/1986	Application #:	06557432	Filing Dt:	12/02/1983
Title:	VOICE TUBE ASSEMBLIES FOR POST-AURICLE HEADSETS

Patent #:	4720857	Issue Dt:	01/19/1988	Application #:	06805907	Filing Dt:	12/06/1985
Title:	MINIATURIZED HEADSET FOR TWO-WAY VOICE COMMUNICATION

Patent #:	4879746	Issue Dt:	11/07/1989	Application #:	07139853	Filing Dt:	12/30/1987
Title:	VOICE COMMUNICATION LINK INTERFACE APPARATUS

Patent #:	4881221	Issue Dt:	11/14/1989	Application #:	07210728	Filing Dt:	06/23/1988
Title:	METHOD AND APPARATUS FOR DISABLING AN ECHO CANCELLER ON A DIGITAL TELECOMMUNICATIONS NETWORK

Patent #:	4107612	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	D227036	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	4107612	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Patent #:	D227036	Issue Dt:		Application #:	UNAVAILABLE	Filing Dt:
Title:

Assignors

PLANTRONICS, INC., A CORP. OF DE.

Exec Dt:

03/01/1989

PLANTRONICS FUTURECOMMS, INC.

Exec Dt:

03/01/1989

KENTROX INDUSTRIES, INC.

Exec Dt:

03/01/1989

WILCOM PRODUCTS, INC.

Exec Dt:

03/01/1989

FREDERICK ELECTRONICS CORPORATION

Exec Dt:

03/01/1989

Assignee

CITICORP NORTH AMERICA, INC. AS AGENT

Correspondence name and address
	WEIL, GOTSHAL & MANGES
	767 FIFTH AVENUE
	NEW YORK, NY 10153

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