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Litton Business Telephone Systems, Inc.
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Sunnyvale, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Subset switching means in apparatus for a key telephone system for...
Patent number
4,081,615
Issue date
Mar 28, 1978
Litton Business Telephone Systems, Inc.
Steven Jon Hoehn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for a key telephone system for enabling intercom substati...
Patent number
4,064,371
Issue date
Dec 20, 1977
Litton Business Telephone Systems, Inc.
Steven Jon Hoehn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for a key telephone system for enabling intercom substati...
Patent number
4,016,372
Issue date
Apr 5, 1977
Litton Business Telephone Systems, Inc.
Steven Jon Hoehn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Toll restrictor for touch type digit selector
Patent number
4,012,602
Issue date
Mar 15, 1977
Litton Business Telephone Systems, Inc.
Joseph Monroe Jackson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Membrane switch assembly font
Patent number
D242930
Issue date
Jan 4, 1977
Litton Business Telephone Systems, Inc.
Joseph Monroe Jackson
D26 - Lighting
Information
Patent Grant
Toll restrictor for touch type digit selector
Patent number
4,000,380
Issue date
Dec 28, 1976
Litton Business Telephone Systems, Inc.
Joseph Monroe Jackson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pushbutton telephone shield plate
Patent number
D242723
Issue date
Dec 14, 1976
Litton Business Telephone Systems, Inc.
Joseph Monroe Jackson
D26 - Lighting
Information
Patent Grant
Touch-to-rotary converter for a telephone instrument
Patent number
3,982,079
Issue date
Sep 21, 1976
Litton Business Telephone Systems, Inc.
Steven Jon Hoehn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Plural line selector apparatus for enabling selection of one of a p...
Patent number
3,931,481
Issue date
Jan 6, 1976
Litton Business Telephone Systems, Inc.
Joseph Monroe Jackson
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73069699 - QUANTUM
Serial number
73069699
Registration number
1043395
Filing date
Nov 20, 1975
LITTON BUSINESS TELEPHONE SYSTEMS, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments