Donald R. Kerstetter

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Emporium, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Low mass, indirectly heated, fast warm-up heater-cathode assembly
- Patent number 4,150,318
- Issue date Apr 17, 1979
- GTE Sylvania Incorporated
- Donald R. Kerstetter
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fast warmup cathode and method of making same
- Patent number 4,009,409
- Issue date Feb 22, 1977
- GTE Sylvania Incorporated
- William E. Buescher
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube cathode
- Patent number 3,974,414
- Issue date Aug 10, 1976
- GTE Sylvania Incorporated
- William E. Buescher
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fast warm up picture tube cathode cap having high heat emissivity s...
- Patent number 3,958,146
- Issue date May 18, 1976
- GTE Sylvania Incorporated
- William E. Buescher
- H01 - BASIC ELECTRIC ELEMENTS